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 Page 2


?Line is  a straight path 
extending in both directions.
?Line segment is a part of line 
included between two end 
points
?Ray is a part of line with one 
end point .
Page 3


?Line is  a straight path 
extending in both directions.
?Line segment is a part of line 
included between two end 
points
?Ray is a part of line with one 
end point .
Types of angles
Linear pair of angles. Adjacent angles Vertically opposite angles
Angle is made by two rays 
intersecting at a vertex.
Page 4


?Line is  a straight path 
extending in both directions.
?Line segment is a part of line 
included between two end 
points
?Ray is a part of line with one 
end point .
Types of angles
Linear pair of angles. Adjacent angles Vertically opposite angles
Angle is made by two rays 
intersecting at a vertex.
? Angles made by the transversal
Angle made 
by the 
transversal
Corresponding 
angles
Alternate 
angles
Page 5


?Line is  a straight path 
extending in both directions.
?Line segment is a part of line 
included between two end 
points
?Ray is a part of line with one 
end point .
Types of angles
Linear pair of angles. Adjacent angles Vertically opposite angles
Angle is made by two rays 
intersecting at a vertex.
? Angles made by the transversal
Angle made 
by the 
transversal
Corresponding 
angles
Alternate 
angles
Read More
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FAQs on PPT: Lines & Angles - Mathematics for EmSAT Achieve

1. What are lines and angles?
Ans. Lines are straight paths that extend infinitely in both directions, whereas angles are formed when two lines meet at a point. Lines can be classified as parallel, intersecting, or perpendicular, while angles can be categorized as acute, right, obtuse, or straight.
2. How do you identify parallel lines?
Ans. Parallel lines are two or more lines that never intersect, no matter how far they are extended. To identify parallel lines, you can use a ruler and check if the distance between any two points on one line is equal to the distance between the corresponding points on the other line.
3. What is the sum of interior angles of a triangle?
Ans. The sum of interior angles of a triangle is always 180 degrees. This means that if you measure all three angles of a triangle and add them together, the total will always be 180 degrees. This property holds true for all types of triangles, whether they are equilateral, isosceles, or scalene.
4. How do you calculate the measure of an angle?
Ans. The measure of an angle can be calculated using a protractor. Place the protractor on the vertex of the angle and align the baseline of the protractor with one side of the angle. Read the degree measurement where the other side of the angle intersects with the protractor. This will give you the measure of the angle in degrees.
5. What are complementary angles?
Ans. Complementary angles are two angles that add up to 90 degrees. In other words, when the measures of two angles sum up to 90 degrees, they are called complementary angles. For example, if one angle measures 30 degrees, the other angle to make it complementary would measure 60 degrees.
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