Quick Math Homework Help
Complex
Convex

Quadrilateral Shape Game  This game from Sheppard Software reviews the properties of quadrilaterals.

Polygons by Math Cats You're about to enter the Polygon Playground!

Polygon Shape Names  Learn an easy method for memorizing the names of polygons.

kite
This Venn diagram helps to visualize the relationships among the different Quadrilaterals.

Quadrilaterals can be separated into the following sub-groups.

• Trapezoids
• Parallelograms

Squares have all the properties of a quadrilateral, a rhombus, a parallelogram, and a rectangle.

trapezoid is a quadrilateral based on its four sides, but has only one pair of parallel sides which eliminates it from being a parallelogram.

kite is a quadrilateral, but not a parallelogram because the opposite sides are not parallel or congruent.

Pre-Algebra/Expressions,Equations,Integers
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Math Calculators
Geometry/Shapes
Geometry/SAT
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Geometry/Basics

Parallelogram
• Two parallel sides
• Opposite sides equal length
• Opposite angles equal
Rectangle
• 4 right angles
• Opposite sides are parallel and equal length
Rhombus
• Opposite angles are equal
• Sides equal length
• Opposite sides are parallel
• No right angles
• Diagonals intersect at right angles

Square
• 4 right angles
• 4 equal sides
Trapezoid
• Only one pair of opposite sides that are parallel
• Parallel sides are called bases
• Nonparallel sides are called legs

## What is a Quadrilateral? Let's look at some common examples.

• Four Sided
• Closed figure
• Four vertices ( also known as corners)
• Interior angles add up to 360◦
• Straight sides, no curves
Kite
• Sides of a kite shape, that are next to each other (adjacent sides) are the same length on a kite.
• Angles that are opposite each other and between the two different length sides are congruent (equal).
• Diagonals of a kite are perpendicular to one another