# Quadrilaterals!

### Coming Monday 15, 2014!!

## Parallelogram

Include Squares, Rhombi, and Rectangles.

They have at least one set of opposite

- parallel sides
- supplementary angles

## Sqaure

All angles must be 90 degrees.

All angles must be the same size.

## Rhombus

All sides are an equal length. Diagonals bisect each other.

## Rectangle

A rectangle is a four-sided shape where every angle is a right angle (90°). Also opposite sides are parallel and of equal length.

## Trapezoid

A trapezoid is a quadrilateral with one set of parallel sides. A trapezoid is isosceles when it has one set of congruent sides and the base angles are congruent.

## Kites

The Diagonals intersect and 90 degrees. The longest diagonal is the angle bisector.