What is the sum of the interior angles of a quadrilateral?

A.) 720°
B.) 540°
C.) 360°
D.) 180°

B.) 540°

To find the sum of the interior angles of a quadrilateral, you need to know that a quadrilateral has four sides.

The formula to find the sum of the interior angles of any polygon is given by:
Sum of interior angles = (n - 2) * 180°, where n is the number of sides of the polygon.

In the case of a quadrilateral, n = 4, so the formula becomes:
Sum of interior angles = (4 - 2) * 180° = 2 * 180° = 360°.

Therefore, the correct answer is C.) 360°.

The sum of the interior angles of a quadrilateral can be found by using the formula:

Sum of interior angles = (n - 2) * 180°,

where n represents the number of sides of the polygon.

In the case of a quadrilateral, n = 4.

So, the sum of the interior angles of a quadrilateral is (4 - 2) * 180° = 2 * 180° = 360°.

Therefore, the correct answer is:

C.) 360°