Question

In the square ABCD below, what is the measure of $\angle AOB$?

• A. ${60}^{\circ }$
• B. ${90}^{\circ }$
• C. ${30}^{\circ }$
• D. ${45}^{\circ }$

Answer 1

The correct option is B

${90}^{\circ }$

As we know that the diagonals of a square bisect each other at right angles.

Thus, the measure of $\angle AOB$ is ${90}^{\circ }$.