CBSE Class 7 > Class 7 Videos > L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7
L2 Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7
FAQs on L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7
| 1. What is practical geometry? |  |
Ans. Practical geometry refers to the branch of mathematics that deals with the construction and measurement of geometric figures using tools like a compass, ruler, and protractor. It involves drawing accurate shapes and lines on paper or other surfaces.
| 2. How do you draw parallel lines using practical geometry? | |
Ans. To draw parallel lines using practical geometry, follow these steps: 1. Start by drawing a line segment. 2. Place the compass point on one endpoint of the line segment and draw an arc that intersects the line segment. 3. Without changing the compass width, place the compass point on the other endpoint of the line segment and draw another arc that intersects the line segment. 4. Using a ruler, draw a line through the points where the arcs intersect the line segment. This line will be parallel to the original line segment.
| 3. What tools are required to draw parallel lines in practical geometry? | |
Ans. The tools required to draw parallel lines in practical geometry include a compass, a ruler, and a pencil. The compass is used to draw arcs, the ruler is used to draw straight lines, and the pencil is used to make the markings.
| 4. Can parallel lines intersect each other? | |
Ans. No, parallel lines cannot intersect each other. Parallel lines are lines that are always the same distance apart and never meet, no matter how far they are extended. If two lines intersect, they are not parallel.
| 5. Why are parallel lines important in geometry? | |
Ans. Parallel lines are important in geometry because they have many applications and properties. Some important uses of parallel lines include constructing angles, finding congruent angles, and determining the slope of lines. Parallel lines also play a significant role in the study of geometric shapes, such as triangles and quadrilaterals, as they help determine properties like similarity and congruence.
Text Transcript from Video
hello friends this video on practical
geometry part 2 is brought to you by
exam feel calm no more fear from exam
let us quickly look at the steps again
one by one so the first step that we do
is we take any point a on the line and
we take any point to be outside the line
now please make sure that this point B
can be anywhere outside the line it just
tells you that the line which you are
going to draw that will be on this point
now let's see if you consider this point
B at this point instead of this point in
that case the line that you will get
will be formed here so that's the only
difference then you join a B now draw an
arc with a as Center this is the arc
with a s Center and this is the arc with
B as Center now ensure that the radius
remains the same that is the positioning
of the compass remains the same now you
measure angle be a n with the compasso
be a n would be this angle let let us
assume that there is some point n here
so this angle would be be a n so how do
you measure it with the compass
something like this so once you measure
this angle now what you do is you draw
an arc with the same opening of compass
with G as Center now what you do is let
us call this point as G so what do we do
now you place the compass in such a way
that this needle of the compass s on G
so basically we are considering G as the
center and we are keeping the opening of
the compass same so you must ensure that
the opening of the compass has not
changed that means this pencil length
should not come closer or should not go
far away so the opening here should
remain the same here and then you mark
this point as H so which point would be
H this point which is marked by the
compass is point H so this is point H
now once we have marked H what is our
next step we join BH now when you join
Paige what do you get you get in other
lines this line M is parallel to L so I
had the parallel because they are
alternate angles are equal so this is
angle 1 this is also angle 1 so
basically angle 1 is equal to angle 2 so
this is how we draw parallel lines now I
am sure that now you would see that it
isn't difficult now once you draw lines
parallel like this the in that case you
do not have any doubt whether the line
is parallel or not because since the
alternate angles are equal so the lines
have to be parallel so let us quickly
try this exercise let's see if we can
draw parallel lines perfectly or not so
what does the exercise say it says the
draw a line L let's draw a line L draw a
perpendicular to L at any point on L so
let us first look at any point on L
let's say we have located any point a on
L now we have to draw a perpendicular on
this point a perpendicular means a line
which makes 90 degree with the line L so
how do we make angle 90 degree you have
learnt in your previous class how do we
draw 90 degree now you can draw it using
protractor but we encourage you to draw
it using a compass so you know how do we
do it right considering a has the center
you draw an arc first like this the
purple one so that is the first arc that
you draw then considering this point as
the centre you draw this blue arc then
considering this point as the centre you
draw this blue arc and then considering
this point is the centre you draw this
arc and then considering this point as
the centre you draw this arc so this is
how you make 90 degree so the point here
point where these two arcs intersect
that point when joined with the point a
makes a line which is making angle 90
degree so this is how we draw an ideal
now I am NOT going getting into the
detail of how to draw a 90 degree again
so this was just a quick recap because I
assume that you have learned about it in
your previous class even
you have not you can refer the videos of
mathematics of class six anyways so this
is how we draw a perpendicular at Point
a now what does the questions say
further on this perpendicular choose a
point X 4 centimeter away from L 4
centimeter away from L that means this
distance between the point X which would
be somewhere here between U and this
line L should be 4 centimeters so what
do we do we take the compass and we mark
this point X so considering a as the
centre you just take a ruler and then
you measure four centimeter on that
ruler using the compass then you can
draw an arc at a distance of four
centimeter or you can simply point make
a point mark this point which is four
centimeter away from n so this is your
point X now through X draw a line M
parallel to n so basically from this X
you need to draw a line that would be
parallel to n so for that what do you
need to do you need to ensure that the
alternate angles are equal now let us
assume that if we assume so let's say
this is just a rough assumption let's
say there is a line running like this
and we want this line to be parallel to
this line in that case the alternate
angles must be equal which would be the
alternate angle so this angle and this
angle these are alternate angles so
basically this angle should be equal to
90 degrees right so that that's what we
mean so we need to ensure that this
angle is 90 degree so for that what do
we do we we follow the same process so
we draw an arc here considering this
point X as the center now we measure
this angle so this angle is 90 degree
anyways we measure it using a compass
now we make sure that the opening of the
compass remain the same and now we place
it here such that one point is at this
point and the other point we just make a
note of where it intersects so we draw
an arc at this point right
now this point we join it with point X
and the line that we get is nothing but
line M so we can say that M is parallel
to L because the alternate angles are
equal so basically this is how we draw
parallel lines now see it might seem
consumed confusing but when you follow
it step by step it is pretty simple the
only concept that you are using is we
are making the alternate angles equal
once the alternate angles are equal the
two lines are anyways parallel thank you
please visit exam fee or comm for free
quality education you can learn with a
simple four-step learning process
wherein you can watch video lessons you
can ask your questions you can refer
notes and you can take a free online
test we have content for class 6 to 12
on physics chemistry mathematics and
biology along with practical videos so
please subscribe to our channel for
daily updates thank you
geometry part 2 is brought to you by
exam feel calm no more fear from exam
let us quickly look at the steps again
one by one so the first step that we do
is we take any point a on the line and
we take any point to be outside the line
now please make sure that this point B
can be anywhere outside the line it just
tells you that the line which you are
going to draw that will be on this point
now let's see if you consider this point
B at this point instead of this point in
that case the line that you will get
will be formed here so that's the only
difference then you join a B now draw an
arc with a as Center this is the arc
with a s Center and this is the arc with
B as Center now ensure that the radius
remains the same that is the positioning
of the compass remains the same now you
measure angle be a n with the compasso
be a n would be this angle let let us
assume that there is some point n here
so this angle would be be a n so how do
you measure it with the compass
something like this so once you measure
this angle now what you do is you draw
an arc with the same opening of compass
with G as Center now what you do is let
us call this point as G so what do we do
now you place the compass in such a way
that this needle of the compass s on G
so basically we are considering G as the
center and we are keeping the opening of
the compass same so you must ensure that
the opening of the compass has not
changed that means this pencil length
should not come closer or should not go
far away so the opening here should
remain the same here and then you mark
this point as H so which point would be
H this point which is marked by the
compass is point H so this is point H
now once we have marked H what is our
next step we join BH now when you join
Paige what do you get you get in other
lines this line M is parallel to L so I
had the parallel because they are
alternate angles are equal so this is
angle 1 this is also angle 1 so
basically angle 1 is equal to angle 2 so
this is how we draw parallel lines now I
am sure that now you would see that it
isn't difficult now once you draw lines
parallel like this the in that case you
do not have any doubt whether the line
is parallel or not because since the
alternate angles are equal so the lines
have to be parallel so let us quickly
try this exercise let's see if we can
draw parallel lines perfectly or not so
what does the exercise say it says the
draw a line L let's draw a line L draw a
perpendicular to L at any point on L so
let us first look at any point on L
let's say we have located any point a on
L now we have to draw a perpendicular on
this point a perpendicular means a line
which makes 90 degree with the line L so
how do we make angle 90 degree you have
learnt in your previous class how do we
draw 90 degree now you can draw it using
protractor but we encourage you to draw
it using a compass so you know how do we
do it right considering a has the center
you draw an arc first like this the
purple one so that is the first arc that
you draw then considering this point as
the centre you draw this blue arc then
considering this point as the centre you
draw this blue arc and then considering
this point is the centre you draw this
arc and then considering this point as
the centre you draw this arc so this is
how you make 90 degree so the point here
point where these two arcs intersect
that point when joined with the point a
makes a line which is making angle 90
degree so this is how we draw an ideal
now I am NOT going getting into the
detail of how to draw a 90 degree again
so this was just a quick recap because I
assume that you have learned about it in
your previous class even
you have not you can refer the videos of
mathematics of class six anyways so this
is how we draw a perpendicular at Point
a now what does the questions say
further on this perpendicular choose a
point X 4 centimeter away from L 4
centimeter away from L that means this
distance between the point X which would
be somewhere here between U and this
line L should be 4 centimeters so what
do we do we take the compass and we mark
this point X so considering a as the
centre you just take a ruler and then
you measure four centimeter on that
ruler using the compass then you can
draw an arc at a distance of four
centimeter or you can simply point make
a point mark this point which is four
centimeter away from n so this is your
point X now through X draw a line M
parallel to n so basically from this X
you need to draw a line that would be
parallel to n so for that what do you
need to do you need to ensure that the
alternate angles are equal now let us
assume that if we assume so let's say
this is just a rough assumption let's
say there is a line running like this
and we want this line to be parallel to
this line in that case the alternate
angles must be equal which would be the
alternate angle so this angle and this
angle these are alternate angles so
basically this angle should be equal to
90 degrees right so that that's what we
mean so we need to ensure that this
angle is 90 degree so for that what do
we do we we follow the same process so
we draw an arc here considering this
point X as the center now we measure
this angle so this angle is 90 degree
anyways we measure it using a compass
now we make sure that the opening of the
compass remain the same and now we place
it here such that one point is at this
point and the other point we just make a
note of where it intersects so we draw
an arc at this point right
now this point we join it with point X
and the line that we get is nothing but
line M so we can say that M is parallel
to L because the alternate angles are
equal so basically this is how we draw
parallel lines now see it might seem
consumed confusing but when you follow
it step by step it is pretty simple the
only concept that you are using is we
are making the alternate angles equal
once the alternate angles are equal the
two lines are anyways parallel thank you
please visit exam fee or comm for free
quality education you can learn with a
simple four-step learning process
wherein you can watch video lessons you
can ask your questions you can refer
notes and you can take a free online
test we have content for class 6 to 12
on physics chemistry mathematics and
biology along with practical videos so
please subscribe to our channel for
daily updates thank you
About this Video
4.8/5 Rating
Apr 19, 2026 Last updated
Related Exams
L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7 for Class 72026 is part of Class 7 preparation. The notes and questions for L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7 have been prepared according to the Class 7 exam syllabus. Information about L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7 covers all important topics for Class 72026 Exam. Find important definitions, questions, notes, meanings, examples, exercises and tests below for L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7.
Introduction of L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7 in English is available as part of our Class 7 preparation & L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7 in Hindi for Class 7 courses. Download more important topics, notes, lectures and mock test series for Class 7 Exam by signing up for free.
Description
L2 : Steps to draw Parallel Lines of covers all the important topics, helping you prepare for the Class 7 exam on EduRev. Start for free!
Information about L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7
Here you can find the L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7 defined & explained in the simplest way possible. Besides explaining types of L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7 theory, EduRev gives you an ample number of questions to practice L2 : Steps to draw Parallel Lines - Practical Geometry , Maths, Class 7 tests, examples and also practice Class 7 tests.
Related Searches
L2 : Steps to draw Parallel Lines - Practical Geometry , L2 : Steps to draw Parallel Lines - Practical Geometry , pdf , Maths, Extra Questions, video lectures, Semester Notes, Objective type Questions, Exam, Summary, Class 7, Class 7, Maths, study material, Sample Paper, practice quizzes, shortcuts and tricks, mock tests for examination, ppt, MCQs, L2 : Steps to draw Parallel Lines - Practical Geometry , Important questions, Maths, Free, past year papers, Class 7, Viva Questions, Previous Year Questions with Solutions;