Question

Select the angle(in degrees) which can be constructed by using a compass and a ruler, within the range.

• A. 30

Answer 1

The correct option is A 30
Using a compass and ruler, a ${60}^{\circ }$ can be constructed. If we bisect it, we will get a ${30}^{\circ }$ angle.

In the following figure, $\angle ABC={60}^{\circ }$ and $\angle PBC={30}^{\circ }$