Congruent Shapes

By the end of this unit, students will be able to:understand the concepts of congruency and similarities between geometric shapes;identify and apply conditions for congruency…
Target Age:

Lesson Overview

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

  1. understand the concepts of congruency and similarities between geometric shapes;
  2. identify and apply conditions for congruency and similarities;
  3. solve problems involving congruent and similar shapes, including proportions and ratios.

Curriculum Alignment: Key Stage 4: Geometry and measures

  • identify and construct congruent triangles, and construct similar shapes by enlargement, with and without coordinate grids
  • apply angle facts, triangle congruence, similarity and properties of quadrilaterals to derive results about angles and sides, including Pythagoras’ Theorem, and use known results to obtain simple proofs
Last updated on: February 20, 2026

More Resources You’ll Love

upper and lower bounds
Upper and Lower Bounds
systematic listings and the product rule for counting
Systematic Listings and the Product Rule for Counting
estimating answers
Estimating Answers
simplifying surds
Introduction to Surd