what is the aproximate volume of a cone shaped party hat with a base whose circumference is 25.12 inches and height is 8 inches

Question

anonymous · Answer

volume of cone is 1/3  pi r^2 h
2pi r=25.12
r=25.12/2pi
r=4.0

anonymous · Answer

vol= 1/3 * pi* (4.0)^2 *8
=134.1cubic inches

anonymous · Answer

oh bt i have multiple coice and a.401.92  b.33.49     c.133.97   d.535.89 so whivh one would it be

anonymous · Answer

C

anonymous · Answer

k thanx

anonymous · Answer

so beens its c right?

anonymous · Answer

yeah

anonymous · Answer

how is it c though if u told me that its 134.1

anonymous · Answer

if you HAVE to choose...there will be a margin of error when calculating

anonymous · Answer

whenever u round of things and continue calculatinbg with the figures that happens...pi by it sely is a rounded figure...i used 3.142

anonymous · Answer

oh okay now i get well thanx .

anonymous · Answer

ok

anonymous · Answer

can you try to answer my friends question by smiley75 because we have the same questions