Area and Perimeter

Front

What is area?

Back

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

Front

What is perimeter?

Back

Perimeter is the distance around a shape.

Front

How do you find the area of a rectangle?

Back

Multiply the length by the width.

Front

How do you find the perimeter of a rectangle?

Back

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

Front

What units are used to measure area?

Back

Square units, such as square inches (in²), square feet (ft²), or square centimeters (cm²).

Front

What units are used to measure perimeter?

Back

Linear units, such as inches (in), feet (ft), or centimeters (cm).

Front

If a rectangle has a length of 5 inches and a width of 4 inches, what is its area?

Back

20 in² (5 in x 4 in = 20 in²).

Front

If a rectangle has a length of 5 inches and a width of 4 inches, what is its perimeter?

Back

18 in (2(5 in + 4 in) = 18 in).

Front

What is the area of a square with a side length of 3 cm?

Back

9 cm² (3 cm x 3 cm = 9 cm²).

Front

What is the perimeter of a square with a side length of 3 cm?

Back

12 cm (4 x 3 cm = 12 cm).