Perimeter

Front

What is the perimeter?

Back

The 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 side length 5cm?

Back

20cm (P = 4 x side length).

Front

If a triangle has sides of length 3cm, 4cm, and 5cm, what is its perimeter?

Back

12cm (3 + 4 + 5).

Front

What is the perimeter of a circle called?

Back

Circumference.

Front

How do you find the perimeter of a regular polygon?

Back

Multiply the length of one side by the number of sides.

Front

What is the perimeter of a rectangle with a length of 8cm and a width of 3cm?

Back

22cm (P = 2(8 + 3)).

Front

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

Back

9cm (P = 4 x side length).

Front

What is the perimeter of an octagon with each side measuring 3cm?

Back

24cm (3cm x 8 sides).

Front

If a rectangle has a perimeter of 30cm and a length of 10cm, what is the width?

Back

5cm (P = 2(length + width) => 30 = 2(10 + width)).