Perimeter (3.7B)

Front

What is perimeter?

Back

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

Front

How do you find the perimeter of a rectangle?

Back

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

Front

If a square has a side length of 5 units, what is its perimeter?

Back

P = 4 x 5 = 20 units.

Front

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

Back

P = 3 + 4 + 5 = 12 cm.

Front

What is the formula for the perimeter of a polygon?

Back

Add the lengths of all the sides together.

Front

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

Back

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

Front

What is the perimeter of a shape with sides measuring 6 cm, 7 cm, and 8 cm?

Back

P = 6 + 7 + 8 = 21 cm.

Front

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

Back

Length of one side = 24 ÷ 4 = 6 units.

Front

What is the perimeter of a pentagon with sides measuring 2 cm, 3 cm, 4 cm, 5 cm, and 6 cm?

Back

P = 2 + 3 + 4 + 5 + 6 = 20 cm.

Front

How do you calculate the perimeter of a circle?

Back

The perimeter of a circle is called the circumference, calculated as C = 2πr.