ANSWER
![(n - 2) * 180 \degree](https://img.qammunity.org/2020/formulas/mathematics/high-school/i06up5t3j43tt9qis3rt14jrlibjntqizc.png)
Step-by-step explanation
The sum of the interior angles of a triangle is 180°
We can rewrite this as:
![1 * 180 \degree = (3 - 2) * 180 \degree = 180 \degree](https://img.qammunity.org/2020/formulas/mathematics/high-school/lsni2vwiqzjntexkw9oaqn0bgu2mw82ddi.png)
The sum of interior angles of a quadrilateral is 360°
We can also rewrite this as:
In general an n-sided polygon has
the sum of the interior angles given by the formula:
![(n - 2) * 180](https://img.qammunity.org/2020/formulas/mathematics/high-school/qigzgqmgjvkhnksiapibms8p5sdj4fd0u7.png)