angles in a quadrilateral

Calculating Angles in a Quadrilateral

Apply the properties of angles in a quadrilateral to calculate unknown angles with this highly engaging maths lesson with differentiated self-marking activities.

Target Age:

Lesson Overview

By the end of this unit, children will be able to:

  1. Understand the properties of a quadrilateral, including the sum of its interior angles.
  2. Apply knowledge of angles to calculate missing angles in various types of quadrilaterals.
  3. Use the fact that the sum of the interior angles of a quadrilateral is 360 degrees to solve angle problems.

Curriculum Alignment: Year 6 Geometry: Properties of shapes

  • Compare and classify geometric shapes based on their properties and sizes and find unknown angles in any triangles, quadrilaterals, and regular polygons.
Last updated on: February 26, 2026

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