Area and Perimeter of Rectangles

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

Area = Length × Width.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

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

Perimeter = 2 × (Length + Width).

Tags

CCSS.4.MD.A.3

Front

If a rectangle has a length of 5 units and a width of 4 units, what is its AREA?

Back

Area = 5 × 4 = 20 square units.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Front

If a rectangle has a length of 6 units and a width of 3 units, what is its PERIMETER?

Back

Perimeter = 2 × (6 + 3) = 18 units.

Tags

CCSS.4.MD.A.3

Front

What is the AREA of a rectangle with a length of 7 units and a width of 2 units?

Back

Area = 7 × 2 = 14 square units.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Front

What is the PERIMETER of a rectangle with a length of 10 units and a width of 5 units?

Back

Perimeter = 2 × (10 + 5) = 30 units.

Tags

CCSS.4.MD.A.3

Front

If the AREA of a rectangle is 24 square units and the width is 4 units, what is the length?

Back

Length = Area ÷ Width = 24 ÷ 4 = 6 units.

Tags

CCSS.4.MD.A.3

CCSS.3.MD.C.7B

Front

If the PERIMETER of a rectangle is 36 units and the length is 12 units, what is the width?

Back

Width = (Perimeter ÷ 2) - Length = (36 ÷ 2) - 12 = 6 units.

Tags

CCSS.4.MD.A.3