Answer and Explanation
Your Answer is
Correct Answer is G
Explanation
∠B=180°-∠BAC-∠BCA=180°-(180°-150°)-(180°-81°)=51°. Choose G.
4. In the figure below, the measure of ∠XAB is 150°; the measure of ∠YCB is 81°; and X, A, C, and Y are collinear. What is the measure of ∠B ?
