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Naming & Classifying Quadrilaterals

Maths: KS3, topic 4.2.2

Naming & Classifying Quadrilaterals

A quadrilateral has 4 sides. The sum of angles in a quadrilateral adds to 360∘360^\circ

Squares and rectangles

Squares and rectangles

  • In a square, all sides are the same length, and every angle is a right angle (90∘)(90^\circ)
  • In a rectangle, there are two pairs of sides with equal length, and every angle is a right angle
Parallelograms and rhombuses

Parallelograms and rhombuses

  • In a rhombus, all sides have the same length, and each pair of opposite angles adds to 180∘180^\circ
  • In a parallelogram, there are two pairs of sides with equal length, and each pair of opposite angles adds to 180∘180^\circ
Kites

Kites

  • A kite is made up of two isosceles triangles
  • There are two pairs of sides with the same length
  • Opposite angles are equal
Trapezia

Trapezia

  • A trapezium is made up of a pair of parallel sides, where one is longer than the other
  • The remaining sides join these up and are of equal length
  • Opposite angles add to 180∘180^\circ

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