Sum of Angles of a Quadrilateral
- Author:
- Elo-Kai, Terry Lee Lindenmuth
- Topic:
- Angles
Move the point A, B, C, D of the quadrilateral and observe the interior angles. Observe the congruent angles in the diagram below the quadrilateral.
What is the sum of the 4 interior angles of a quadrilateral? Answer the question using only a number.