Question

defg is an isosceles trapezoid. find the measure of ∠g. a. 101° b. 59° c. 121° d. 79°

Explanation:

Step1: Recall isosceles trapezoid property

In an isosceles trapezoid, base - angles are equal. That is, $\angle D=\angle G$ and $\angle E = \angle F$.

Step2: Identify the angle equal to $\angle G$

We are given that $\angle D = 121^{\circ}$. Since $\angle D$ and $\angle G$ are base - angles of the isosceles trapezoid $DEFG$, $\angle G=\angle D$.

Answer:

C. $121^{\circ}$