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Define Complementary Angles. - Mathematics

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Answer in Brief

Define complementary angles.

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Solution

Complementary Angles: Two angles, the sum of whose measures is 90°, are called complementary angles.

Thus, angles ∠BAX and ∠XACare complementary angles, if

 x +y = 90°

Example 1:

Angles of measure 50°and 40°are complementary angles, because

50°+40° =90°

Example 2:

Angles of measure 60°and 30°are complementary angles, because

60°+30° =90°

Concept: Introduction to Lines and Angles
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APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 10 Lines and Angles
Q 1 | Page 50
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