Question

Which of the following is impossible to draw using the given set squares?

• A. ${90}^{\circ }$
• B. ${105}^{\circ }$
• C. ${85}^{\circ }$
• D. ${150}^{\circ }$

Answer 1

The correct option is C ${85}^{\circ }$

${90}^{\circ }$ is present in one of the set squares. ${105}^{\circ }$ can be constructed using ${45}^{\circ }$ and ${60}^{\circ }$.
Similarly, ${150}^{\circ }$ can be constructed using ${90}^{\circ }$ and ${60}^{\circ }$.