Area and Perimeter

Front

What is the perimeter of a shape?

Back

The perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Tags

CCSS.4.MD.A.3

Front

What is the area of a rectangle?

Back

The area is the amount of space inside the rectangle, calculated using the formula: A = length × width.

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What units are used to measure perimeter?

Back

Perimeter is measured in linear units such as inches, centimeters, or meters.

Front

What units are used to measure area?

Back

Area is measured in square units such as square inches, square centimeters, or square meters.

Tags

CCSS.3.MD.C.5A

Front

If a rectangle has a length of 10 cm and a width of 5 cm, what is its perimeter?

Back

P = 2(10 cm + 5 cm) = 30 cm.

Tags

CCSS.4.MD.A.3

Front

If a rectangle has a length of 8 cm and a width of 4 cm, what is its area?

Back

A = 8 cm × 4 cm = 32 cm².

Tags

CCSS.3.MD.C.7B

CCSS.4.MD.A.3

Front

What is the perimeter of a square with each side measuring 6 in?

Back

P = 4 × 6 in = 24 in.

Tags

CCSS.4.MD.A.3

Front

If the perimeter of a rectangle is 40 cm and the length is 12 cm, what is the width?

Back

Width = (40 cm - 2 × 12 cm) / 2 = 8 cm.

Tags

CCSS.4.MD.A.3

Front

What is the relationship between perimeter and area?

Back

Perimeter measures the boundary length, while area measures the space within.