Question

If the supplement of an angle is three times its complement, then angle is:

• A. 40°
• B. 35°
• C. 50°
• D. 45°

Answer 1

The correct option is D

45°

Let angle be x.

So, 180${}^{\circ }$ - x = 3 × (90${}^{\circ }$ - x)

x = 45${}^{\circ }$