Question

Carlos performed a transformation on trapezoid EFGH to create E′F′G′H′ as shown in the figure below.


What transformation did Carlos perform to create E′F′G′H′?

rotation of 90 degrees clockwise about the origin

rotation of 90 degrees clockwise about the center of the figure

rotation of 90 degrees counterclockwise about the origin

rotation of 90 degrees counterclockwise about the center of the figure

Answer 1

We know that the measures did not change, and we only rotated our trapezoid.
Let's analyze the answers:
1) It cannot be clockwise about the origin, because it would've changed plane.
2)Clockwise about the center of the figure, the H'G' would go totally the wrong direction.
3)this one is also wrong, because if we continued moving about the origin, the angles of the lines tespective to the X axis qould change.
4) if we turn it, 90º about the center and clockwise, we obtain the figure we see, so this one is correct.

Answer 2

thank u