Question

triangle abc, shown in the diagram below, is an isosceles triangle. if the measure of ∠acb is 42.5°, what is the measure of ∠abc? 132.5° 47.5° 42.5° 137.5°

Explanation:

Step1: Recall isosceles - triangle property

In an isosceles triangle \(ABC\) with \(AC = AB\), the base - angles are equal. That is, \(\angle ABC=\angle ACB\).

Step2: Identify given angle

We are given that \(\angle ACB = 42.5^{\circ}\).

Answer:

C. \(42.5^{\circ}\)