Question

Given the rotation in the image below, solve for the values of x and y,

HELPPPP

Answer 1

x = 5

y = 4

Explanation:

Since, rotation of a figure is a rigid transformation.

In a rigid transformation shape and size of the figure remains unchanged, that means image and pre-image are always congruent.

By the property of congruent triangles,

x = 5

3y = x + 7

3y = 5 + 7

3y = 12

y = 4