Area and Perimeter

Front

What is the perimeter of a shape?

Back

The perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Front

What is the area of a shape?

Back

The area is the amount of space inside a shape, measured in square units.

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width: Area = length × width.

Front

What is the formula for the area of a square?

Back

Area = side × side or Area = side².

Front

If each side of a square is 5 cm, what is its area?

Back

Area = 5 cm × 5 cm = 25 square cm.

Front

What is a composite figure?

Back

A composite figure is made up of two or more simple shapes.

Front

How do you find the area of a composite figure?

Back

Calculate the area of each simple shape and then add them together.

Front

What is the perimeter of a square?

Back

Perimeter = 4 × side length.

Front

If a rectangle has a length of 10 cm and a width of 4 cm, what is its perimeter?

Back

Perimeter = 2(10 cm + 4 cm) = 28 cm.