Yeah, this is from khan academy so plz ! will get marked as brainliest if answered correctly first

They are complementary angles, or answer (B).

Complementary angles add up to 90 degrees. In the figure, angles a and b are part of a right angle (denoted by the little square thing).

So, a and b are complementary.

the answer is complementary angles(b)

hope i helped:)

1

step-by-step explanation:

it's the only multiple of both and the least

fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right