QQuestion
If ∠A and ∠B are complementary then ∠A + ∠B = _____
✓Answer
90º
Explanation
Two angles are called complementary angles if the sum of their measures is 90 degrees.
So, by definition:
∠A and ∠B are complementary
⇒ ∠A + ∠B = 90°.
Example: If ∠A = 30°, then ∠B = 60°.
30° + 60° = 90°.
Therefore, the answer is 90°.
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