Question

Which of the following pair of angles is the complementary angle? 25 and 65 31 and 71 60 and 40 145 and 35

Answer 1

25 and 65

Explanation:

complementary angle= either of two angles whose sum is 90°

25 and 65, sum = 90°

• yes

31 and 71, sum = 102°

• no

60 and 40, sum = 100°

• no

145 and 35, sum = 180°

• no

Answer 2

Explanation:

If the sum of a pair of angles is 90, then they are complementary angles.

25 + 65 = 90

So, 25 and 65 are complementary angles