Question

Help please!
I got 28.26 so witch one would it be?
What is the approximate circumference of the circle? Use π ≈ 3.14.
http://lv.k12.com/mediaFiles/Ninth_Grade/Math/Unit17525/Lesson68692/VHS_PA_S2_03_L209_L309_Q5.gif
A.21.1 feet
B.36 feet
C.56.5 feet
D.113 feet

Answer 1

How did you get that?

Answer 2

I got it r*3.14/2

Answer 3

The formula for the circumference of a circle is $$C=2\pi r$$

Answer 4

Have you seen this before?

Answer 5

yeah i have.. but i mean the approximate circumference of the circle
i got 28.26 so i mean witch is closer ?

Answer 6

How did u get the 28.26 ?

Answer 7

as @skullpatrol said ; C=2*pi*r=2*3.14*18=113 feet

Answer 8

Replace "r" in the formula C=2(3.14)r with 18 and calculate C.