Topics
Geometry
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India
Class IX

Angles and Parallel Lines

Lesson
Practice

Interactive practice questions

What is the relationship between the marked angles in each of the following figures?

a

Alternate angles

A

Co-interior angles

B

Corresponding angles

C
b

Corresponding angles

A

Alternate angles

B

Co-interior angles

C
c

Co-interior angles

A

Alternate angles

B

Corresponding angles

C
d

Alternate angles

A

Co-interior angles

B

Corresponding angles

C
e

Alternate angles

A

Co-interior angles

B

Corresponding angles

C
f

Co-interior angles

A

Corresponding angles

B

Alternate angles

C
Easy
1 min

In the following, identify all pairs of interior alternate angles.

Easy
1 min

In the following, identify the pair of co-interior angles.

Easy
< 1 min

In the following, identify all pairs of corresponding angles.

Easy
1 min
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Outcomes

9.G.LA.1

If a ray stands on a line, then the sum of the two adjacent angles so formed is 180° and the converse. If two lines intersect, the vertically opposite angles are equal. Results on corresponding angles, alternate angles, interior angles when a transversal intersects two parallel lines.

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