Area and Perimeter

Front

What is the perimeter of a rectangle?

Back

The perimeter is the total distance around the rectangle. You can find it by adding the lengths of all four sides.

Front

How do you find the perimeter of a rectangle?

Back

You add the lengths of all the sides together. For a rectangle, the formula is P = 2(length + width).

Front

What is the unit of measurement for perimeter?

Back

The unit of measurement for perimeter can be centimeters (cm), meters (m), inches (in), or feet (ft), depending on the context.

Front

What is the difference between area and perimeter?

Back

Area measures the space inside a shape, while perimeter measures the distance around it.

Front

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

Back

The perimeter is 16 cm (P = 2(5 + 3) = 16).

Front

What do you do to find the perimeter of a shape?

Back

You add the lengths of all the sides together.

Front

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

Back

The perimeter is 16 cm (P = 4 sides x 4 cm = 16 cm).

Front

If the perimeter of a rectangle is 20 cm and the length is 8 cm, what is the width?

Back

The width is 2 cm (P = 2(length + width) => 20 = 2(8 + width) => width = 2).

Front

What is a common mistake when calculating perimeter?

Back

A common mistake is to multiply the length by the width instead of adding the sides.

Front

What is the perimeter of a triangle with sides measuring 3 cm, 4 cm, and 5 cm?

Back

The perimeter is 12 cm (3 + 4 + 5 = 12).