cyclic quadrilateral check
Check the final answer first, then review the worked steps.
Problem
cyclic quadrilateral check
Step-by-step solution
A quadrilateral is cyclic if and only if its opposite angles are supplementary. Here, $\angle A + \angle C = 110^\circ + 110^\circ = 220^\circ \neq 180^\circ$ and $\angle B + \angle D = 80^\circ + 60^\circ = 140^\circ \neq 180^\circ$.
Answer
B. False