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Perimeter of a rectangle
Image caption,
The perimeter of this shape is 10 + 10 + 6 + 6 = 32

The perimeter is the length all the way around the outside of a 2D shape.

We can calculate it by adding the individual lengths of all the sides.

The perimeter for regular and irregular shapes is found the same way.

In this video CAL has a problem with rabbits eating his carrots, and he wants to build a fence around the boundary of his garden to keep the rabbits out.

He needs to calculate how much fencing he will need.

But how does he do it?

Perimeter of a rectangle
Image caption,
The perimeter of this shape is 10 + 10 + 6 + 6 = 32

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