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 total 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 units and a width of 5 units, what is its area?

Back

50 square units.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

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

Back

22 units.

Tags

CCSS.4.MD.A.3

Front

What is the area of a rectangle with an area of 36 square units and a width of 4 units?

Back

Length = 9 units.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

If the perimeter of a rectangle is 42 units and the length is 6 units, what is the width?

Back

Width = 15 units.

Tags

CCSS.3.MD.D.8

Front

What is the formula for finding the area of a rectangle?

Back

Area = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the formula for finding the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width).

Tags

CCSS.3.MD.D.8