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How Many Pairs of Adjacent Angles Are Formed When Two Lines Intersect in a Point? - Mathematics

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Answer in Brief

How many pairs of adjacent angles are formed when two lines intersect in a point?

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Solution

Let us draw the following diagram showing two lines AB and CD intersecting at a point O.

We have the following pair of adjacent angles, so formed:

∠AOC and  ∠BOC

∠AOC and  ∠AOD

∠BOD and  ∠BOC

∠BOD and ∠AOD

Hence, in total four pair of adjacent angles are formed.

Concept: Concept of Parallel Lines
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APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 10 Lines and Angles
Q 12 | Page 50

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