Area and Perimeter

Front

What is Perimeter?

Back

Perimeter is the distance around a shape. It is calculated by adding the lengths of all the sides.

Front

What is Area?

Back

Area is the amount of space inside a shape. It is calculated by multiplying the length by the width for rectangles.

Front

If a rectangle has a length of 5 units and a width of 3 units, what is its Area?

Back

Area = Length x Width = 5 x 3 = 15 square units.

Front

If a rectangle has a length of 4 units and a width of 2 units, what is its Perimeter?

Back

Perimeter = 2(Length + Width) = 2(4 + 2) = 12 units.

Front

What do you need to calculate the Area of a rectangle?

Back

You need the length and the width of the rectangle.

Front

What do you need to calculate the Perimeter of a rectangle?

Back

You need the lengths of all four sides or just the length and width.

Front

If you want to cover a lawn with grass seeds, which measurement do you need?

Back

You need to know the Area of the lawn.

Front

If you want to put a fence around a garden, which measurement do you need?

Back

You need to know the Perimeter of the garden.

Front

What is the formula for the Perimeter of a square?

Back

Perimeter = 4 x side length.

Front

What is the formula for the Area of a square?

Back

Area = side length x side length.