Question

To construct a ${15}^{\circ }$ angle without using a protractor, we need a angle.

• A. ${30}^{\circ }$
• B. ${90}^{\circ }$
• C. ${50}^{\circ }$
• D. ${45}^{\circ }$

Answer 1

The correct option is A ${30}^{\circ }$

To construct an angle of ${15}^{\circ }$ without using a protractor, we will first draw an angle of ${60}^{\circ }$ and then bisect it to form an angle of ${30}^{\circ }$. We will then bisect it further to form an angle of ${15}^{\circ }$. So, we need a ${30}^{\circ }$ angle to construct a ${15}^{\circ }$.