Question

Which of the following angles can be drawn using a broken protractor with markings from $0^{\circ }$ to ${45}^{\circ }$.

• A. ${80}^{\circ }$
• B. ${60}^{\circ }$
• C. ${30}^{\circ }$
• D. ${20}^{\circ }$

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A

${80}^{\circ }$

B

${60}^{\circ }$

C

${30}^{\circ }$

D

${20}^{\circ }$

${20}^{\circ }$ and ${30}^{\circ }$ can be directly drawn using the given protractor.

To draw ${80}^{\circ }$

Step1: Draw ${45}^{\circ }$ with the broken protractor.

Step2: Draw ${35}^{\circ }$ angle with the ray making ${45}^{\circ }$ coinciding with the zero of the protractor.

The complete angle ${45}^{\circ }+{35}^{\circ }={80}^{\circ }$ has been drawn.

Similarly, ${60}^{\circ }$ can also be drawn.