Question

∠AOB is shown on a coordinate plane. Select all of the following transformations that would preserve the measure of ∠AOB . Answer Choices reflection in the x -axis counterclockwise rotation by 90° the translation P(x,y)→P′(x+2,y+3) the horizontal dilation P(x,y)→P′(2x,y)

Answer 1

reflection in the x -axis, counterclockwise rotation by 90° ,the translation P(x,y)→P′(x+2,y+3)