Question

triangle c is a scaled copy of triangle b. what is the value of a?

Explanation:

Step1: Recall the property of scaled - copy triangles

Scaled - copy triangles (similar triangles) have the same angle measures.

Step2: Identify the corresponding angle

In triangle \(B\), the vertex angle is \(40^{\circ}\). Since triangle \(C\) is a scaled - copy of triangle \(B\), the vertex angle \(a\) in triangle \(C\) corresponds to the vertex angle in triangle \(B\).

Answer:

\(40\)