# How many degrees are there in an angle which

Geometry
How many degrees are there in an angle which equals two-third of its complement?

- 60°
- 48°
- 45°
- 36°

### Answer

Let angle be A.

Complementary angle = 90 - A

A = 2/3 * (90 - A)

3A = 180 - 2A

A = 36°

**The correct option is D.**