Area and Perimeter

Front

What is the area?

Back

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

Front

What is the formula to calculate the area of a rectangle?

Back

Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a shape?

Back

The perimeter is the distance around a shape.

Front

What is the formula to calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Tags

CCSS.3.MD.D.8

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 sq cm.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

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

Back

Perimeter = 2 × (4 + 2) = 12 units.

Tags

CCSS.4.MD.A.3

Front

What units are used to measure area?

Back

Area is measured in square units, such as square centimeters (sq cm) or square meters (sq m).

Tags

CCSS.3.MD.C.5A

Front

What units are used to measure perimeter?

Back

Perimeter is measured in linear units, such as centimeters (cm) or meters (m).

Front

If the area of a square is 16 sq units, what is the length of one side?

Back

Length of one side = √16 = 4 units.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the area of a rectangle with a length of 6 cm and a width of 2 cm?

Back

Area = 6 cm × 2 cm = 12 sq cm.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3