Question

multiple - choice question
is this complementary or supplementary?
60°
30°
supplementary
complementary
rewatch

Explanation:

Step1: Recall angle - sum definitions

Complementary angles sum to 90°, supplementary angles sum to 180°.

Step2: Calculate the sum of given angles

$30^{\circ}+60^{\circ}=90^{\circ}$

Answer:

B. Complementary