Perimeter

Front

What is perimeter?

Back

Perimeter is the total distance around the outside of a shape.

Front

How do you calculate the perimeter of a rectangle?

Back

Add the lengths of all four sides or use the formula: P = 2(length + width).

Front

What is the perimeter of a rectangle with a length of 5 in and a width of 5 in?

Back

20 in.

Front

How do you calculate the perimeter of a triangle?

Back

Add the lengths of all three sides.

Front

What is the perimeter of a triangle with sides measuring 7 in, 8 in, and 9 in?

Back

24 in.

Front

What is the perimeter of a square?

Back

P = 4 × side length.

Front

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

Back

16 cm.

Front

How do you calculate the perimeter of a parallelogram?

Back

P = 2(base + height).

Front

What is the perimeter of a parallelogram with a base of 10 yd and a height of 8 yd?

Back

36 yd.

Front

What is the perimeter of a heptagon?

Back

Add the lengths of all seven sides.