A rectangle is graphed on a coordinate grid then a transformation is applied. The resulting rectangle is NOT congruent to the original rectangle.

Question

Which transformation could have been applied to the original rectangle

A. Translation 12 units down
B. Reflection across the X axis
C. Dilation by a scale factor of five
D. Rotation of 90° clockwise About the origin

Answer 1

B. Reflection across the X axis

Reflecting a rectangle across the X axis would result in a new rectangle that is not congruent to the original.