In a geometric diagram, ∠A and ∠B are complementary, and they form a straight line with ∠C. If m∠A=x°, m∠B=(2x)°, and m∠C=90°, what is the measure of ∠B?(1 point)
Responses
90°
90 degrees
30°
30 degrees
180°
180 degrees
6
Responses
90°
90 degrees
30°
30 degrees
180°
180 degrees
6