An Interior Angle is an angle inside a shape: Another example: The Interior Angles of a Triangle add up to 180°.

Aug 13, 2025 · In this article, we will learn about the interior angles of a polygon, the sum of interior angles of a polygon, the formula for the interior angles, and others in detail.

6 days ago · Enter the total number of sides of any polygon into the calculator to determine the sum of the interior angles. This calculator can also evaluate the number of sides when given the interior angle.

Here you will learn about interior angles of a polygon, including how to calculate the sum of interior angles for a polygon, single interior angles, and how to use this knowledge to solve problems.

Mar 10, 2025 · In particular, it is helpful to know how to calculate the sum of interior angles in a polygon. This can be done using a simple formula, or by dividing the polygon into triangles.

We can find an unknown interior angle of a polygon using the "Sum of Interior Angles Formula". Let us consider the below example to find the missing angle ∠x in the following hexagon.

Learn how to calculate the sum and measure of interior angles of any polygon easily, with stepwise formulas, solved problems, and downloadable worksheets.

Each interior angle of a regular polygon = (n-2)180°/n, where n is the number of sides in the polygon. The sum of the angles in any polygon is equal to the number of sides in the polygon minus two, all …

To find the size of one interior angle of a regular polygon, divide the sum of the interior angles by the number of sides. To find the size of a missing interior angle in an irregular...

The interior angles of any polygon always add up to a constant value, which depends only on the number of sides. For example the interior angles of a pentagon always add up to 540° no matter if it …