Question

what is the value of c? (triangle egf with all sides marked equal, angle at e is c) c = °

Explanation:

Step1: Identify triangle type

The triangle has all three sides marked with equal tick marks, so it is an equilateral triangle.

Step2: Recall equilateral triangle angle property

In an equilateral triangle, all interior angles are equal, and the sum of interior angles of a triangle is $180^\circ$.

Step3: Calculate angle $c$

$c = \frac{180^\circ}{3}$

Answer:

$60$