In △ABC, m∠A=50∘, m∠B=60∘, and m∠C=70∘. If △ABC is rotated 90∘ counterclockwise to △XYZ, what is the measure of angle Z?

Given:

In and .

is rotated counterclockwise to .

To find:

The measure of angle Z.

Solution:

We know that the rotation is a rigid transformation. It means the image and figure are congruent to each other.

is rotated counterclockwise to . So, .

                     (CPCTC)

Therefore, the measure of angle Z is 70 degrees.

true

step-by-step explanation:

i think the correct option is the second option.