Maritza draws a rectangle on the coordinate plane and labels the vertices A, B, C, and D. She then reflects the figure across the x-axis to get rectangle A′B′C′D′. What is the measure of angle D′ in the reflected rectangle?(1 point)

Question

Angle D′ measures
°.

Answer 1

In the reflection across the x-axis, the y-coordinate of each point is negated. Since angles are determined by the position of the points relative to each other, reflecting the rectangle across the x-axis does not change the angles. Therefore, angle D' is equal to angle D. Thus, the measure of angle D′ in the reflected rectangle is the same as the measure of angle D, which is given in the problem. Since the measure of angle D is not provided, we cannot determine the measure of angle D′.