PERIMETER AND CIRCUMFERENCE

Calculate the perimeter

Find the circumference of the circle.

• 38.47 cm

• 10.99 cm

• 43.96 cm

• 21.98 cm

What number represents π?

• 31.4

• 4.13

• 3.14

• 34.1

Find the perimeter

What does d represent in the formula:

C = π·d

• diameter

• radius

• pi

• 3.14

What is the circumference of a circle?

• the distance around a circle

• the area of a circle

• halfway through a circle

• a line through the center of a circle

If my circumference is 163.28ft, what is my radius?

• 52ft
• 26ft
• 3.14ft
• 163.28ft

If my circumference is 50.24ft, what is my radius?

• 8ft
• 16ft
• 25.12ft
• 50.24ft

What is the perimeter?

Calculate the perimeter