Question

PLEASE HELP ITS AN EMERGENCY!!

Answer 1

m∠b = m∠r

Explanation:

The triangle was reflected across line m.

A reflection is a rigid transformation. A rigid transformation does not change the measurement or size of a shape, so the pre-image and the image are congruent.

The angles on the pre-image corresponds to the angles on the image. This also is for line segments.

This means (for angle measurements):

• Angle A is congruent to Angle P
• Angle C is congruent to Angle S
• Angle B is congruent to Angle R

Option D should be the correct answer.

Answer 2

m∠B=m∠R

Explanation:

If you make the triangles congruent, you'll see many things like:

∠A=∠P

∠B=∠R

∠C=∠S

Line AB=Line RP

Line BC=Line RS

Line CA=Line SP

Out of the options, only m∠B=m∠R is true.