a cylinder is 7ft is radius and 3 ft in height pi is 22 over 7
the formula for volume is V=pi * r squared * height
what is the volume
note * means times or multiply
2007-01-09 11:34:04 · 7 answers · asked by skyflier0 2 in Science & Mathematics ➔ Mathematics
Volume is 462 cubic feet.
2007-01-09 11:37:59 · answer #1 · answered by the smart kid 2 · 0⤊ 0⤋
V=(22/7)*7^2*3= 462
2007-01-09 11:40:46 · answer #2 · answered by ENA 2 · 0⤊ 0⤋
V = h*pi*r^2 = (3ft)(22/7)(7ft)^2 = (3)(22)(49)/7 cubic feet
2007-01-09 11:40:31 · answer #3 · answered by kellenraid 6 · 0⤊ 0⤋
49 * 3* pi = 147 * pi
147 * pi = 462 ft^3 or 462 cubic feet.
(FYI ...I used 22/7 for pi since my computer calc does not have a pi button).
2007-01-09 11:39:15 · answer #4 · answered by coachandybrown 2 · 0⤊ 0⤋
How are you stuck? Where it says pi in the formula, put 22/7. Where it says r in the formula, put 7. Finally, where it says h in the formula, put 3. Now use your calculator to get the answer.
2007-01-09 11:41:08 · answer #5 · answered by Nick R 4 · 0⤊ 0⤋
Sorry I dont work in units of ft
But
r is radius = 7 ft = 2.1336 meters
h is height = 3 ft = 0.9144 meters
so
Volume = Pi * r^2 * h = 3.14 * 2.1336^2 * 0.9144 = 13.0705 cubic meters
13.0705 cubic meters is approximately 461.58 cubic feet
2007-01-09 11:42:44 · answer #6 · answered by The Answerer 3 · 0⤊ 0⤋
dude if u can t do this then no1 na1 can help u
v=22/7*7square*3
=462 cubic ft
2007-01-09 11:38:57 · answer #7 · answered by well thts it...... 3 · 0⤊ 0⤋