The area of a shape is the amount of space that it takes up. The perimeter is the distance around the outside of a shape. Watch this presentation to learn how to work them out:
If you are having trouble remembering the difference between the area and perimeter, try watching this song. The message is simple, but hopefully how to work out the perimeter will stick in your head:
The following video by davesgud shows you how to work out the area of a right angled triangle:
Now try these games to test out what you know:
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