Question

For the construction of an angle of measure $22{\frac{1}{2}}^{\circ }$ using a compass, which of the following angle should be constructed first?

• A.
• B.
• C.
• D.

Answer 1

The correct option is C

Construct ${90}^{\circ }$, then bisecting ${90}^{\circ }$ will give ${45}^{\circ }$. Bisecting ${45}^{\circ }$ will give $22{\frac{1}{2}}^{\circ }$.