Perimeter Flashcard 1

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

If a triangle has a perimeter of 30 cm and two sides are 10 cm each, how long is the third side?

Back

10 cm

Front

What is the perimeter of a square with each side measuring 6 feet?

Back

24 feet (P = 4 x side length).

Front

What is the perimeter of a rectangle with a length of 5 units and a width of 3 units?

Back

16 units (P = 2(5 + 3)).

Front

If a shape has a perimeter of 24 units, what could be the lengths of its sides?

Back

Possible lengths could be 6, 6, 6, 6 (square) or 10, 7, 7 (rectangle).

Front

What is the perimeter of a triangle with sides measuring 5 cm, 7 cm, and 8 cm?

Back

20 cm (5 + 7 + 8).

Front

How do you find the perimeter of a polygon?

Back

Add the lengths of all its sides.

Front

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

Back

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

Front

If a square has a perimeter of 36 feet, what is the length of one side?

Back

9 feet (P = 4 x side length, so side = 36/4).