Question

Given: A DEF is located on the coordinate plane 2D measures 136° If the triangle is rotated 90° counterclockwise about the origin to form A D'E'F', what is the measure of ZD'?

Answer 1

c. 136 degree

Step-by-step explanation:

Since the triangle D'E'F' is an image of DEF, simply rotated it keeps its measures, hence the angle D and the angle D' are both equal to 136 degree.