Question

question
a figure containing ∠lmn is dilated by a scale factor of ⅓ to form a new figure which contains ∠lmn. ∠lmn measures 79°. what is the measure of ∠lmn?
answer
attempt 1 out of 2
m∠lmn = °

Explanation:

Step1: Recall dilation property

Dilation is a transformation that changes the size of a figure but not the shape. Angles are preserved under dilation.

Step2: Determine angle measure

Since $\angle LMN$ and $\angle L'M'N'$ are corresponding angles in a dilation, $m\angle LMN=m\angle L'M'N'$.

Answer:

$79$