# What do the angles in a quadrilateral add up to?

A quadrilateral can be defined as a closed, two-dimensional shape which has four straight sides, four vertices or corners. In any quadrilateral, the sum of the four angles is 360^{0}

A quadrilateral can be defined as a closed, two-dimensional shape which has four straight sides, four vertices or corners. In any quadrilateral, the sum of the four angles is 360^{0}