A circle could be circumscribed about the quadrilateral below.
Check the final answer first, then review the worked steps.
Problem
A circle could be circumscribed about the quadrilateral below.
Step-by-step solution
A circle can be circumscribed about a quadrilateral if and only if its opposite angles are supplementary. Here, $\angle A + \angle C = 90^{\circ} + 90^{\circ} = 180^{\circ}$, but $\angle B + \angle D = 120^{\circ} + 60^{\circ} = 180^{\circ}$. Therefore, a circle can be circumscribed.
Answer
True