Question

use triangles to find the sum of the interior angle measures of the polygon.
the sum of the interior measures of the polygon is (square^{circ}).

Explanation:

Step1: Divide the polygon into triangles

The given polygon can be divided into 3 triangles.

Step2: Calculate the sum of interior angles

The sum of interior angles of a triangle is \(180^{\circ}\). If a polygon is divided into \(n\) triangles, the sum of its interior angles is \(180^{\circ}\times n\). Here \(n = 3\), so the sum is \(180^{\circ}\times3\).

Answer:

\(540^{\circ}\)