3rd Grade Perimeter

Front

What is the perimeter?

Back

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

Front

What is the unit of measurement for perimeter?

Back

Common units for measuring perimeter include centimeters (cm), meters (m), feet (ft), and inches (in).

Front

How do you find the perimeter of a rectangle?

Back

To find the perimeter of a rectangle, use the formula P = 2(length + width).

Front

What is the perimeter of a square with each side measuring 5cm?

Back

P = 5cm + 5cm + 5cm + 5cm = 20cm.

Front

If a shape has sides measuring 3cm, 4cm, and 5cm, what is the perimeter?

Back

P = 3cm + 4cm + 5cm = 12cm.

Front

What is the formula for the perimeter of a triangle?

Back

P = side1 + side2 + side3.

Front

If the perimeter of a square is 24cm, what is the length of one side?

Back

Each side is 24cm ÷ 4 = 6cm.

Front

What is the perimeter of a rectangle with a length of 10cm and a width of 4cm?

Back

P = 2(10cm + 4cm) = 28cm.

Front

If the perimeter is 36cm and one side is 10cm, what is the total length of the other three sides?

Back

The total length of the other three sides is 36cm - 10cm = 26cm.

Front

What is the perimeter of a shape with sides measuring 8cm, 6cm, 8cm, and 6cm?

Back

P = 8cm + 6cm + 8cm + 6cm = 28cm.