Question

What is the exact volume of the cylinder?











A.

18π in3








B.

36π in3








C.

54π in3








D.

63π in3

Answer 1

@texaschic101

Answer 2

@texaschic101

Answer 3

simple... use formula...

v=pie*r^2*h... and solve....

Answer 4

@paki I do that but it gives me an answer that I don't have as a choice

Answer 5

it gives me 169.56

Answer 6

Really, Ikatouni, this formula ought to be one that you know by heart. if you don't know it, why aren't you looking it up on the Internet? if your result doesn't match any of the answers, then show us exactly how you got your answer by typing out all of your work here. I can't tell much by your "169.56".

Answer 7

V = pi * r^2 * h

r = 3
h = 6

now sub
V = pi * 3^2 * 6
V = pi * 9 * 6
V = pi * 54 or V = 54pi in^3

Answer 8

I did 3.14*3*3*6

Answer 9

no... dont put the pie value... then check....

Answer 10

you do not have to put the 3.14 into the problem because the answer choices do not require that

Answer 11

yeah agree with the solution of @texaschic101

Answer 12

so just do 3*3*6

Answer 13

yes...but incluse the pi sign

Answer 14

typo...include

Answer 15

yeah that is rite...

Answer 16

thanks I got 54

Answer 17

Write out the formula for the volume of a cylinder.

Next, in this formula, replace r by the given radius and h by the given height.

You could experiment with pi: Use an approx such as 3.14, 3.14159, 22/7 or the like. Your results should all be within the same ball-park figure.

texaschic's result, V = pi * 54 or V = 54pi in^3, is good because it involves NO rounding off AND she includes the proper units of measurement.

Answer 18

yup 54 is rite...