Area & 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 total distance around a shape, calculated by adding the lengths of all sides.

Front

How do you calculate the Area of a rectangle?

Back

Area = Length x Width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

How do you calculate the Perimeter of a rectangle?

Back

Perimeter = Length + Width + Length + Width.

Tags

CCSS.4.MD.A.3

Front

If a rectangle has an area of 40 square yards and a width of 4 yards, what is the length?

Back

Length = Area ÷ Width = 40 ÷ 4 = 10 yards.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a rectangle has a length of 4 inches and an area of 40 square inches, what is the width?

Back

Width = Area ÷ Length = 40 ÷ 4 = 10 inches.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the area of an envelope that is 6 inches wide and 8 inches long?

Back

Area = Length x Width = 6 x 8 = 48 square inches.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If a wall is 14 feet wide and 20 feet long, what is the area of the wall?

Back

Area = Length x Width = 14 x 20 = 280 square feet.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

How much wallpaper is needed for a wall with a window?

Back

Wallpaper needed = Area of wall - Area of window.

Front

What is the perimeter of a sandbox that is 4 meters wide and 2 meters long?

Back

Perimeter = 2(Length + Width) = 2(4 + 2) = 12 meters.

Tags

CCSS.4.MD.A.3