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Question
Identify the given pair of angles are complementary or supplementary.
65°, 115°
Sum
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Solution
The sum of the measures of complementary angles is 90° and that of supplementary angles is 180°.
65°, 115°
Sum of the measures of these angles = 65° + 115°
= 180°
∴ These angles are supplementary angles.
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Chapter 5: Lines and Angles - EXERCISE 5.1 [Page 78]
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