Classify Triangles

In these free math worksheets, you can practice how to classify quadrilaterals: square, rectangle, rhombus, parallelogram, kite, trapezoid and to organize them in a hierarchy.
You can either print the worksheets (pdf) or practice online.

Classifying quadrilaterals involves identifying and categorizing them based on their properties, such as side lengths, angles, and symmetry.

A quadrilateral is a polygon with four sides and four vertices.

Parallelogram:
A parallelogram has two pairs of parallel sides.
Opposite sides are parallel and equal in length.
Opposite angles are equal.

Rectangle:
A rectangle is a special type of parallelogram.
It has all four sides at right angles (90 degrees).
Opposite sides are parallel and equal in length.

Kite:
No parallel sides, and pairs of adjacent sides are equal.

Rhombus:
A rhombus is special type of rectangle and a special type of kite. All sides are equal in length, but the angles may not be right angles.

Square:
A square is a special type of rectangle and a special type of rhombus.
It has all four sides equal in length and all four angles at right angles.

Trapezoid:
At least one pair of opposite sides are parallel.

We can also classify the quadrilateral using a hierarchy based on its properties as shown in the diagram below.

Have a look at this video if you need to review how to classify quadrilaterals and their hierarchy.

Click on the following worksheet to get a printable pdf document.
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(The answers are on the second page)

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