12-18

Front

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

Back

P = 2(length + width)

Front

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

Back

A = length × width

Front

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

Back

P = 30 inches

Front

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

Back

A = 50 square inches

Front

What does 'perimeter' mean?

Back

Perimeter is the total distance around the outside of a shape.

Front

What does 'area' mean?

Back

Area is the amount of space inside a shape.

Front

If the length of a rectangle is doubled, how does that affect the perimeter?

Back

The perimeter increases by the amount of the new length.

Front

If the width of a rectangle is halved, how does that affect the area?

Back

The area is also halved.

Front

What is the perimeter of a rectangle with a length of 12 inches and a width of 6 inches?

Back

P = 36 inches

Front

What is the area of a rectangle with a length of 12 inches and a width of 6 inches?

Back

A = 72 square inches