Perimeter Flashcard

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 square with each side measuring 5 cm?

Back

20 cm (P = 4 x side length).

Front

If a rectangle has a length of 10 m and a width of 4 m, what is its perimeter?

Back

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

Front

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

Back

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

Front

If the perimeter of a rectangle is 50 cm and the length is 15 cm, what is the width?

Back

10 cm (P = 2(length + width) => 50 = 2(15 + width)).

Front

What is the perimeter of a polygon with sides measuring 6 in, 8 in, and 5 in?

Back

19 in (P = 6 + 8 + 5).

Front

How much fencing does Farmer Lisa need for a rectangular fence with a length of 12 feet and a width of 6 feet?

Back

36 feet (P = 2(12 + 6)).

Front

What is the missing side length if the perimeter of a rectangle is 44 m and one side is 10 m?

Back

12 m (P = 2(length + width) => 44 = 2(10 + width)).

Front

What is the perimeter of a square with a side length of 7 m?

Back

28 m (P = 4 x 7).