# Lengths in Right-Angled Triangles

Students learn how to use Pythagoras' Theorem to calculate missing lengths in right-angled triangles.    As learning progresses they solve more complex problems involving triangular shapes.
##### Lengths in Right-Angled Triangles Differentiated Learning Objectives
• All students should be able to use Pythagoras’ Theorem to find any length of a right-angled triangle.
• Most students should be able to use Pythagoras’ Theorem to find the height or base of an isosceles triangle.
• Some students should be able to prove Pythagoras’ Theorem using algebra.

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