Perimeter Introduction for 3rd Grade

Front

What is the perimeter?

Back

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

Front

How do you find the perimeter of a rectangle?

Back

To find the perimeter of a rectangle, add the lengths of all four sides or use the formula: 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).

Front

If a square has a side length of 4 cm, what is its perimeter?

Back

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

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).

Front

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

Back

You add the lengths of all the sides of the shape.

Front

What is the perimeter of a shape with sides measuring 2 cm, 3 cm, and 5 cm?

Back

The perimeter is 10 cm (2 + 3 + 5 = 10).

Front

If a rectangle has a length of 6 cm and a width of 2 cm, what is its perimeter?

Back

The perimeter is 16 cm (P = 2(6 + 2) = 16).

Front

What is the perimeter of a square with a side length of 5 units?

Back

The perimeter is 20 units (P = 4 sides x 5 units).

Front

What is the formula for the perimeter of a rectangle?

Back

The formula for the perimeter of a rectangle is P = 2(length + width).