Sizing Them Up
Can you put these shapes in order of size? Start with the smallest.
Can you put these shapes in order of size? Start with the smallest.
Are these statements always true, sometimes true or never true?
What can you say about these shapes? This problem challenges you to create shapes with different areas and perimeters.
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?
Use the information on these cards to draw the shape that is being described.
Can you draw a square in which the perimeter is numerically equal to the area?
Sally and Ben were drawing shapes in chalk on the school playground. Can you work out what shapes each of them drew using the clues?
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?
Create some shapes by combining two or more rectangles. What can you say about the areas and perimeters of the shapes you can make?
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?