Question

Write True or False in each of the following . Give reason for your answer:
An angle of ${42.5}^{\circ }$ can be constructed .

• A. True
• B. False

Answer 1

The correct option is B False

Since , ${42.5}^{\circ }=\frac{1}{2}\times {85}^{\circ }$ and ${85}^{\circ }$ cannot be constructed by using ruler and compass . Also ${42.5}^{\circ }$ is not multiple of $3$. Therefore , an angle of ${42.5}^{\circ }$ can not be constructed.