Area and Perimeter

Front

What is Area?

Back

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

Front

What is Perimeter?

Back

Perimeter is the distance around a shape, calculated by adding the lengths of all its sides.

Front

How do you calculate the area of a rectangle?

Back

Multiply the length by the width (Area = Length × Width).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides (Perimeter = 2 × (Length + Width)).

Tags

CCSS.4.MD.A.3

Front

What is the area of a rectangle with length 3 units and width 3 units?

Back

9 square units.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a rectangle with length 3 units and width 3 units?

Back

12 units.

Tags

CCSS.4.MD.A.3

Front

If a rectangle has an area of 20 square units and a width of 4 units, what is its length?

Back

5 units (Length = Area ÷ Width).

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a perimeter of 30 units and a length of 10 units, what is its width?

Back

5 units (Width = (Perimeter ÷ 2) - Length).

Tags

CCSS.4.MD.A.3

Front

What is the area of a rectangle with length 5 units and width 2 units?

Back

10 square units.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a rectangle with length 5 units and width 2 units?

Back

14 units.

Tags

CCSS.4.MD.A.3