Types and Properties of Quadrilaterals
Quadrilaterals are any four-sided figure, joined by four straight lines, that is, Quadrilaterals are four-sided polygons.
Properties of Quadrilaterals:
-Four vertices (corners).
-Interior angles sum to 360°.
-Exterior angles sum to 360°.
Things to Know:
-Diagonals are line segments that join two opposite vertices (corners).
-Two sides are adjacent, if they share a common vertex.
-Two angles are adjacent, if they share a common side.