Classifying quadrilaterals

Name: _____________________ Date: __________

Show your thinking with numbers, words, or a drawing.

1. What is the best name for this quadrilateral? Matching tick marks show equal sides, matching arrows show parallel sides and small squares show right angles.

1. rhombus

Read the marks on the sides and corners.

All 4 sides are equal, but the corners are not right angles.

Opposite sides are parallel.

The best name is rhombus.

2. parallelogram

Read the marks on the sides and corners.

Both pairs of opposite sides are parallel and equal.

The corners are not right angles and the sides are not all equal.

The best name is parallelogram.

3. parallelogram

Read the marks on the sides and corners.

Both pairs of opposite sides are parallel and equal.

The corners are not right angles and the sides are not all equal.

The best name is parallelogram.

4. rectangle

Read the marks on the sides and corners.

All 4 corners are right angles, but the sides are not all equal.

Opposite sides are equal and parallel.

The best name is rectangle.

5. square

Read the marks on the sides and corners.

All 4 sides are equal and all 4 corners are right angles.

A square is the only quadrilateral with both.

The best name is square.

Choose a question from the printable. Use objects or a drawing to show your thinking, then explain your method to someone at home.