Question

In the process of construction of a ${45}^{\circ }$, a angle would be constructed first.

• A. ${100}^{\circ }$
• B. ${90}^{\circ }$
• C. ${22.5}^{\circ }$
• D. ${120}^{\circ }$

Answer 1

The correct option is B ${90}^{\circ }$

${45}^{\circ }$ is half of ${90}^{\circ }$.

Hence, by bisecting ${90}^{\circ }$, an angle of ${45}^{\circ }$ can be constructed.

Thus, the ${90}^{\circ }$ angle will be constructed first.