Question

quadrilateral bird is inscribed in circle o. what is the measure of ∠d? 0

Explanation:

Step1: Use cyclic quadrilateral property

Opposite angles sum to $180^\circ$. $\angle I + \angle D = 180^\circ$

Step2: Solve for $\angle D$

$\angle D = 180^\circ - 117^\circ = 63^\circ$

Answer:

63