Perimeter

There are 39 NRICH Mathematical resources connected to Perimeter

problem

Favourite

Perimeter challenge

Age

11 to 14

Challenge level

Can you deduce the perimeters of the shapes from the information given?

problem

Favourite

Shape draw

Age

7 to 11

Challenge level

Use the information on these cards to draw the shape that is being described.

problem

Favourite

Through the window

Age

7 to 11

Challenge level

My local DIY shop calculates the price of its windows according to the area of glass and the length of frame used. Can you work out how they arrived at these prices?

game

Favourite

Dicey perimeter, dicey area

In this game for two players, you throw two dice and find the product. How many shapes can you draw on the grid which have that area or perimeter?

problem

Favourite

Perimeter possibilities

Age

11 to 14

Challenge level

I'm thinking of a rectangle with an area of 24. What could its perimeter be?

problem

Favourite

Can they be equal?

Age

11 to 14

Challenge level

Can you find rectangles where the value of the area is the same as the value of the perimeter?

problem

Favourite

Changing areas, changing perimeters

Age

11 to 14

Challenge level

How can you change the area of a shape but keep its perimeter the same? How can you change the perimeter but keep the area the same?

problem

Favourite

Is there a theorem?

Age

11 to 14

Challenge level

Draw a square. A second square of the same size slides around the first always maintaining contact and keeping the same orientation. How far does the dot travel?

problem

Favourite

Area and perimeter

Age

7 to 11

Challenge level

What can you say about these shapes? This problem challenges you to create shapes with different areas and perimeters.

problem

Favourite

Numerically equal

Age

7 to 11

Challenge level

Can you draw a square in which the perimeter is numerically equal to the area?

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For younger learners

Perimeter

Perimeter challenge

Shape draw

Through the window

Dicey perimeter, dicey area

Perimeter possibilities

Can they be equal?

Changing areas, changing perimeters

Is there a theorem?

Area and perimeter

Numerically equal