Simple Perimeter

Front

What is perimeter?

Back

Perimeter is the distance around a shape.

Front

How do you find the perimeter of a rectangle?

Back

Add the lengths of all four sides together.

Front

What is the formula for the perimeter of a rectangle?

Back

Perimeter = 2(length + width)

Front

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

Back

Perimeter = 4 cm + 4 cm + 4 cm + 4 cm = 16 cm.

Front

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

Back

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

Front

If a shape has a perimeter of 20 m, what could be the lengths of its sides?

Back

Possible lengths could be 5 m, 5 m, 5 m, and 5 m (for a square).

Front

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

Back

Perimeter = 2 in. + 3 in. + 5 in. = 10 in.

Front

If a rectangle has a length of 6 m and a width of 3 m, what is its perimeter?

Back

Perimeter = 2(6 m + 3 m) = 18 m.

Front

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

Back

Perimeter = 5 in. + 5 in. + 5 in. + 5 in. = 20 in.

Front

How can you check if your perimeter calculation is correct?

Back

Re-add the lengths of all sides to ensure they equal the calculated perimeter.