Area and Perimeter

Front

What is the perimeter of a rectangle?

Back

The perimeter is the total distance around the rectangle, calculated by adding the lengths of all four sides.

Front

How do you calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (Length + Width)

Front

What is the area of a rectangle?

Back

The area is the amount of space inside the rectangle, calculated by multiplying the length by the width.

Front

How do you calculate the area of a rectangle?

Back

Area = Length × Width

Front

If a rectangle has a length of 5 cm and a width of 3 cm, what is its area?

Back

Area = 5 cm × 3 cm = 15 square cm.

Front

If a rectangle has a perimeter of 20 cm and one side is 6 cm, what is the length of the other side?

Back

Perimeter = 2 × (Length + Width) => 20 = 2 × (6 + Width) => Width = 4 cm.

Front

What do you need to measure to buy carpet for a room?

Back

You need to measure the area of the room.

Front

What is the unit of measurement for area?

Back

Square units, such as square centimeters (sq. cm) or square feet (sq. ft).

Front

What is the unit of measurement for perimeter?

Back

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

Front

If a rectangle has an area of 24 square cm and a width of 4 cm, what is the length?

Back

Length = Area ÷ Width = 24 sq. cm ÷ 4 cm = 6 cm.