Question

triangle f is a scaled copy of triangle e.
triangle e
triangle f
what is the value of d?

Explanation:

Step1: Recall properties of scaled copies

Scaled copies (similar figures) have corresponding angles equal. So triangle F, being a scaled copy of triangle E, will have the same angle measures as triangle E for corresponding angles.

Step2: Identify the corresponding angle

In triangle E, the angle with measure \(138^\circ\) corresponds to the angle \(d^\circ\) in triangle F because of the scaling (corresponding angles in similar triangles are equal).

Answer:

\(138\)