If ∠A and ∠B are complementary and ∠A = 40°, what is ∠B?
Show answer & explanation
Correct answer: C
Explanation
Given:
∠A = 40°
∠A and ∠B are complementary.
According to the formula:
The sum of complementary angles = 90°
∠B = 90° − 40°
= 50°
SSC CPO - 10 Dec 2025 - Shift 2 • Quantitative Aptitude • Q121
If ∠A and ∠B are complementary and ∠A = 40°, what is ∠B?
Correct answer: C
Explanation
Given:
∠A = 40°
∠A and ∠B are complementary.
According to the formula:
The sum of complementary angles = 90°
∠B = 90° − 40°
= 50°