Question

What is the circumference of this circle? Use �� ��� 3.14. Round your answer to the nearest tenth of a centimeter.

A.
17.3 cm

B.
34.5 cm

C.
22.0 cm

D.
69.1 cm

Answer 1

do you know the formula to find C ??

Answer 2

i dont remember

Answer 3

okay if they gave you the diameter you can use this formula \[\large\rm C= \pi \times d\]

Answer 4

ok it is b

Answer 5

and if given is radius
then \[\large\rm C = 2 \pi r\]

Answer 6

:-)

Answer 7

C = 2\[C = 2\pi r\]

Diameter = 11 cm
Radius = 5.5 cm (cause it's half of diameter)

C = 2 * 3.14 * 5.5 = 34.54 cm or 34.5 cm (since rounded)

@Sworewolf The correct answer is B. 34.5 cm