True or False? A circle could be circumscribed about the quadrilateral below.
Check the final answer first, then review the worked steps.
Check the final answer first, then review the worked steps.
A circle can be circumscribed about a quadrilateral if and only if its opposite angles are supplementary. Angle A + Angle C = 70° + 90° = 160° != 180°. Angle B + Angle D = 110° + 90° = 200° != 180°.