White H House of Math logo on multicolored square

Learning Tools

Curriculum

Curriculum

Curriculum

Log in

Quadrilaterals

Menu
Angle Sum of a Quadrilateral

What Is the Angle Sum of a Quadrilateral?

The angle sum of a quadrilateral is always 360°. This allows you to determine the size of a missing angle when you know the size of the other three.

0%
What is the angle sum of a quadrilateral?