How to identify different polygons

Find out about different regular and irregular polygons.

What are the types of triangle?

Find out about scalene, equilateral, isosceles and right-angled triangles.

What are the parts of a circle?

Discover the features of a circle and how to measure the radius, circumference and diameter.

What is the perimeter?

Discover how to work out the area of a 2D shape, by adding the length of its sides together.

4 class clips

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