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Watch: Type of triangles

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What are the types of triangles?

the 4 types of triangles

Triangles

There are 4 types of triangle. They all have 3 sides and are polygons.

1. Equilateral

Equilateral triangles have 3 equal sides and 3 equal angles of 60掳

2. Isosceles

Isosceles triangles have 2 equal sides and 2 equal angles.

3. Right-angled

1 of the angles is a right angle (90掳) in right-angled triangles.

4. Scalene

Scalene triangles have no equal sides and no equal angles.

the 4 types of triangles
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Activities

Activity 1

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Quiz

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More on 2D shapes

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