Classify quadrilaterals

  • quadrilateral is a shape with 4 sides.
  • trapezium is a quadrilateral with one pair of parallel sides.
  • rhombus is a parallelogram with 4 sides that are congruent.
  • square is a parallelogram with 4 right angles and 4 congruent sides.

Learn with an example

rhombus square quadrilateral trapezium

Look at the shape. There are two opposite sides that are both perpendicular to a third side. So, the two opposite sides are parallel to each other.

This shape is best described as a trapezium.

kite trapezium rectangle square

Look at the shape. All four angles are right angles.

This shape is best described as a rectangle.

trapezium kite square quadrilateral

Look at the shape. Sides with matching tick marks are congruent.

This shape is best described as a square.

let’s practice!