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Find the angle which is equal to its supplement.

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Question

Find the angle which is equal to its supplement.

Sum
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Solution

Let the angle be x.

supplement of this angle is also x.

The sum of the measures of a supplementary angle pair is 180°.

∴ x + x = 180°

2x = 180°

x = 90°

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Chapter 5: Lines and Angles - EXERCISE 5.1 [Page 78]

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NCERT Mathematics [English] Class 7
Chapter 5 Lines and Angles
EXERCISE 5.1 | Q 5. | Page 78

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