Examples: ASA Congruence Rule Video Lecture - Class 9

hello friends this video on triangles
part 5 is brought you by exam fear calm
no more fear for me similar way yes say
that when this one sign this order
single think inside angle these are
corresponding they're the same trying
it's a common they all so you see these
two triangles are seen yeah I got seen
these third angle with also these are
equals
this is a 2d will be we're doing these
three angles are equal this side is
equal catch the comment okay so now if
this is true you can actually apply the
other that is what we just saw like tac
think inside it to begin to 30 seconds
blue this angle now we see this angle
this is a coincidence
so by a say we came through actually yes
okay just remember these terms but this
has to not be here the SAS essence is
true
ESA is true he hears these sayings II
you have more models of them will study
for these later so let's take some
examples of line segments may be this
parallel to and this angle
always the midpoint of each triangle
vertical your purse triangle and this -
I guess we prefer my reference so we
have to do that the glutens let's see oh
he is going ot see see we just see in
this theorem
okay ABC if you ABO to DC TC this is
little difficult drop so once you are
taller draw this okay it is also toward
that o is the midpoint of 80 this AO is
going to be he will recite this is like
so this is given now if you see you can
actually do that by this angle side
angle we should try as a kamikaze angle
side angle side all these three least
triangle the corresponding is
experimental this equal or again that we
see
okay these very good white because they
were just given and then another angle
you see the other we just drew in rough
to understand the problem
so other but no Meah writing cleaning
this and that's how you solve in each
effective ocean first you understand and
you can see you are convinced that you
can do it then you can destroy it in
three English so now therefore this can
be you see by sign in the side s is so
easy
okay next s move that always the
midpoint of BC - always the midpoint of
BC then who sees you between this is - I
can see the suicides was you know either
corresponding sides of each to make the
pitch is hundred so you can see that was
easy and even we can just see that since
this is trying us a comment and that's
correct please e so once you through the
mists of time as a compliment can easily
do that o is the midpoint of BC that is
OC is equal to I is the midpoint of BC
just like you see that means she has to
be equal to OB let's take this ball and
say that there's a quadrilateral
a.c b JC please no you say a CVD you do
what of an order and you should reach JC
then be a CVD AC is equal to ad that is
given a B by 6 so we have to do that
angle ABC and abd our best is if for
this video and just try to draw these
for the first point this is how you draw
the triangle now going through there
let's see what are common given B is
easy one
and they are equally well adn is here
and Eevee is a common sight so you see
just when you have drawn this you can
say that side angle side side angle side
so bias is property these two triangles
are covering the only thing is you draw
this once you draw this you can make on
that side angle side side angle side
these two triangles are congruent just
by looking at the figure the only thing
is that you have to draw the speaker and
for this you need practice practice more
than one I can easily draw these two
angles now I can say that just writing
cleaning less ABC and triangle a we can
say that a B is equal to B be a common
side or you can say by construction okay
AC is equal to VD given an angle a good
angle game so easy of saying angle a is
equal to angle a we will see that angle
B is equal to angle B why reason is
given that a B by sex regularly we just
copy a B by 6 so therefore triangle ABC
is congruent to triangle we okay next is
what can you say about bc NB cbnb so if
you see they are corresponding sides are
going congruent triangle you can say
that we see that does the relationship
between bc NB d they are equal why
because the triangles are conkright okay
let's take few more example and I expect
you guys to gain pause the video and try
to draw this congruent triangles are you
on and try to prove it on your own and
then again play the video game too is
check if this solution is correct so I'd
say that ABC ABC coordinate image ad PC
what you see that equal I'm gonna be a B
and C C is took like this right so you
have to prove that V is used that is so
we have these two triangles are so let's
see whatever is given VAD they're equal
sides BC media let's see any comments I
so just by looking at this we can see
that during side angle side they are
congruent
okay so I can see that you see by side
angle C we write that this side will be
side this side this side and this angle
is like women
okay now this is triangle so we are now
able to do that BD is equal to AC so you
can see BD is going to have C it has to
be this is done video is equal to VZ y
corresponding sides
science okay so please not VD is going
to be a CPD is not equal to BC
corresponding sides will be equally
decided we will do next is angle abd a
billing cycle and angle B you see this
also has to be corresponding angles so I
can see that and the reason is
corresponding angles all convent winners
right in this is this angle lots of
equal to this angle and that's how it is
two triangles are power and all the
three corresponding sides or the three
angles will be to each other
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