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Identify which of the following pairs of angles are complementary and which are supplementary:(i) 65°,115°(ii)63°, 27°(iii) 112°, 68°(iv) 130°, 50°(v) 45°, 45°(vi) 80°,10° |
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Answer» If sum of two angles is 180° , then they are called supplementary angles. If sum of two angles is 90° , then they are called complementary angles. (i) 65° + 115° = 180° These are supplementary angles. (ii) 63° + 27° = 90° These are complementary angles. (iii) 112° + 68° = 180°These are supplementary angles. (iv) 130° + 50° = 180° These are supplementary angles. (v) 45° + 45° = 90° These are complementary angles. (vi) 80° + 10° = 90° These are complementary angles. |
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