The sum of the interior angles of a quadrilateral is 360
- The sum of the interior angles of a quadrilateral is 360 degrees
- The sum of the interior angles of a quadrilateral is always 360 degrees
- The angle sum of a quadrilateral
- The sum of the measures of the interior angles is 360
- In a right triangle one angle measures x° where sin ° = x 4 5 . what is cos(90° − °) x