Perimeter and Area Review

Front

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

Back

Perimeter = 2 * (length + width)

Front

If the perimeter of a rectangle is 34 cm and the length is 10 cm, what is the width?

Back

Width = (Perimeter / 2) - Length = (34 / 2) - 10 = 7 cm

Front

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

Back

Area = length * width

Front

If a rectangle has a length of 5 cm and a width of 3 cm, what is its area?

Back

Area = 5 cm * 3 cm = 15 square cm

Front

What is the difference between perimeter and area?

Back

Perimeter is the total distance around a shape, while area is the amount of space inside a shape.

Front

How do you find the unknown side length of a polygon if the perimeter is known?

Back

Subtract the sum of the known side lengths from the total perimeter.

Front

What is the perimeter of a square with a side length of 4 cm?

Back

Perimeter = 4 * side length = 4 * 4 cm = 16 cm

Front

What is the area of a square with a side length of 4 cm?

Back

Area = side length * side length = 4 cm * 4 cm = 16 square cm

Front

How do you calculate the area of a triangle?

Back

Area = (base * height) / 2

Front

If a triangle has a base of 6 cm and a height of 4 cm, what is its area?

Back

Area = (6 cm * 4 cm) / 2 = 12 square cm