Area and Perimeter

Front

What is the perimeter?

Back

The perimeter is the total distance around a shape.

Front

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

Back

Perimeter = 2 × (length + width)

Tags

CCSS.3.MD.D.8

Front

What is the area?

Back

The area is the amount of space inside a shape.

Front

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

Back

Area = length × width

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What units do we use to measure area?

Back

Square units (e.g., square centimeters, square meters) are used to measure area.

Tags

CCSS.3.MD.C.5A

Front

What units do we use to measure perimeter?

Back

Linear units (e.g., centimeters, meters) are used to measure perimeter.

Front

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

Back

Perimeter = 2 × (5 cm + 3 cm) = 16 cm.

Tags

CCSS.4.MD.A.3

Front

If a rectangle has a length of 4 m and a width of 2 m, what is its area?

Back

Area = 4 m × 2 m = 8 square meters.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

Do you multiply or add when you find the perimeter?

Back

You add the lengths of all sides.

Tags

CCSS.3.MD.D.8

Front

What is the perimeter of a square with each side measuring 4 cm?

Back

Perimeter = 4 × 4 cm = 16 cm.

Tags

CCSS.4.MD.A.3