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Knowing Different Kinds of Triangle

In this worksheet, students identify different types of triangles classified by their sides, by their angles or by a combination of both sides and angles.

'Knowing Different Kinds of Triangle' worksheet

Key stage:  KS 3

Curriculum topic:   Geometry and Measures

Curriculum subtopic:   Derive and Illustrate Properties of Plane Figures

Difficulty level:  

Worksheet Overview

A scalene triangle has no sides equal and no angles equal.


An isosceles triangle has two sides equal and also two angles equal.


An equilateral triangle has all three sides and all three angles equal to 60°.

 

A right-angled triangle is one in which one angle is 90°.

 

Examples:

 

Scalene Isosceles Equilateral Right angle

 

Note that equal sides are marked by small dashes.

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