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

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

Perimeter = 2 × (Length + Width).

Tags

CCSS.4.MD.A.3

Front

If a rectangle has a length of 10 feet and a width of 5 feet, what is its area?

Back

Area = 10 feet × 5 feet = 50 square feet.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a length of 8 feet and a width of 3 feet, what is its perimeter?

Back

Perimeter = 2 × (8 feet + 3 feet) = 22 feet.

Tags

CCSS.4.MD.A.3

Front

What is the area of a square with a side length of 4 units?

Back

Area = 4 units × 4 units = 16 square units.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a square with a side length of 4 units?

Back

Perimeter = 4 sides × 4 units = 16 units.

Tags

CCSS.4.MD.A.3

Front

If a shape has an area of 24 square units and a length of 6 units, what is its width?

Back

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

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What do you need to measure to find out how much carpet to buy?

Back

You need to measure the area of the room.