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Geometry: Triangle Names and Angles

In this worksheet, students name the different types of angles and triangles.

'Geometry: Triangle Names and Angles' worksheet

Key stage:  KS 2

Year:  Year 4 11+ worksheets

Curriculum topic:   Maths and Numerical Reasoning

Curriculum subtopic:   Reading Scales

Difficulty level:  

Worksheet Overview

ANGLES

An acute angle is less than 90º

A right angle is 90º

An obtuse angle is between 90º and 180º

A straight line angle is 180º

A reflex angle is between 180º and 360º

 

TRIANGLES

A right-angled triangle has one 90º angle

An isosceles triangle has two equal angles

An equilateral triangle has three equal angles, each of size 60º

A scalene triangle has three different angles

 

 

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