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How Many Pairs of Adjacent Angles, in All, Can You Name in Below Fig.? - Mathematics

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How many pairs of adjacent angles, in all, can you name in below fig.?

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Solution

Pairs of adjacent angles are

`∠`EOC, `∠`DOC

`∠`EOD, `∠`DOB

`∠`DOC, `∠`COB

`∠`EOD, `∠`DOA

`∠`DOC, `∠`COA

`∠`BOC, `∠`BOA

`∠`BOA, `∠`BOD

`∠`BOA, `∠`BOE

`∠`EOC, `∠`COA

`∠`EOC, `∠`COB

∴ Hence 10 pairs of adjacent angles

Concept: Pairs of Angles
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APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 10 Lines and Angles
Exercise 10.2 | Q 7 | Page 15

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