Perimeter and Area

Front

What is the definition of perimeter?

Back

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 definition of area?

Back

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: A = length × width.

Front

What is the area of a rectangle with a length of 5 cm and a width of 8 cm?

Back

40 square centimeters.

Front

What is the perimeter of a rectangle with a length of 5 cm and a width of 8 cm?

Back

26 centimeters.

Front

What units are used to measure area?

Back

Square units, such as square centimeters (cm²) or square meters (m²).

Front

What units are used to measure perimeter?

Back

Linear units, such as centimeters (cm), meters (m), or feet (ft).

Front

If a rectangle has a length of 10 units and a width of 2 units, what is its area?

Back

20 square units.

Front

If a rectangle has a length of 10 units and a width of 2 units, what is its perimeter?

Back

24 units.