Geometry

Question Analysis

This question focuses on determining the sum of the interior angle measures of a regular polygon. The key lies in applying the relevant formula based on the number of sides of the polygon, which tests the understanding of the characteristics of regular polygons.

 

Key Concept Explanation

The formula for the sum of the interior angle measures of a polygon is , where  represents the number of sides of the polygon. This formula is derived from dividing the polygon into  triangles, and since the sum of the interior angles of a triangle is , the sum for the polygon is .

 

Step - by - Step Solution

1. Identify the number of sides:

The given polygon is a triangle, so .

2. Apply the formula:

Substitute  into the formula .

First, calculate : .

Then, find :

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