Perimeter of rectangles

Front

What is the formula to calculate the perimeter of a rectangle?

Back

Perimeter = 2 × (length + width)

Front

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

Back

30 inches

Front

What does the term 'perimeter' mean?

Back

Perimeter is the distance around a figure.

Front

If you know the perimeter of a rectangle is 40 feet and the length is 15 feet, what is the width?

Back

Width = (Perimeter/2) - Length = (40/2) - 15 = 5 feet

Front

What is the perimeter of a rectangle with a length of 12 cm and a width of 8 cm?

Back

40 cm

Front

Fill in the blank: The perimeter of a rectangle is found by adding the lengths of all ________.

Back

Sides

Front

If a rectangle has a perimeter of 50 meters, and one side is 20 meters, what is the length of the other side?

Back

15 meters

Front

What is the perimeter of a square with each side measuring 4 inches?

Back

16 inches (Perimeter = 4 × side length)

Front

How does the perimeter of a rectangle change if both the length and width are doubled?

Back

The perimeter also doubles.

Front

What is the perimeter of a rectangle with a length of 7 feet and a width of 3 feet?

Back

20 feet