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प्रश्न
Are the following pairs of angles complementary?
54° and `2/5` of a right angle.
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उत्तर
54° and `2/5` of a right angle
⇒ 54° and `2/5xx90°`
⇒ 54° and 36°
Yes, there are complementary angles as their sum is 90° (54° + 36° = 90°)
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