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Define Supplementary Angles. - Mathematics

Answer in Brief

Define supplementary angles.

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Solution

Supplementary Angles: Two angles, the sum of whose measures is180° , are called supplementaryangles.

Thus, angles ∠BAC and ∠DAC are supplementary angles, if

x + y = 180°

Example 1:

Angles of measure 50°and130°are supplementary angles, because

50° +130°=180°

Example 2:

Angles of measure 60°and120°are supplementary angles, because

60° +120° =180°

Concept: Introduction to Lines and Angles
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APPEARS IN

RD Sharma Mathematics for Class 9
Chapter 10 Lines and Angles
Q 2 | Page 50
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