Question

Which of these angles are complementary?
A. 45 and 45
B. 63 and 117
C. 45 and 135
D. 90 and 45

Answer 1

complementary angles add up to 90 degrees.

Answer 2

Complementary angles add up to 90. So which one of these pairs add up to 90?

Answer 3

Now, which one of those add up to 90?

Answer 4

45 and 45

Answer 5

yep