i have one hallow cylinder. i want to fill that with concrete[ in cubic meter]. how much cubic meter of concrete is required?
the height of cylinder is 1.5 meter and diameter of the cylinder is 150 millimeter. give me the answer plz.
2006-11-14 15:46:38 · 7 answers · asked by phoniex 1 in Science & Mathematics ➔ Mathematics
it is simply base area*height
our base area is a circle for a perfect cylinder, which would be pi*(r^2), where r is your radius.
You need to convert your diameter into meters. There are 1000 millimeters to a meter. So your diameter is .150 meters, and because your radius is half that, your radius is .075 meters.
plug in your values into pi*(r^2)*h, and there you go!
2006-11-14 15:53:35 · answer #1 · answered by hdegroot 1 · 0⤊ 0⤋
(pi)(r^2)(h)
where r is the radius, and h is the hieght of the cylinder.
150/2 = 75 mm (RADIUS)
(r^2) = (75^2) = 5625 mm sq.
(5625)(h) = (5625)(1500)
1500 because 1.5 meters is 1500 millimeters (must ALWAYS use consistent units)
so...
(5625)(1500) = 8437500 mm cubed.
to covert back into cubic meters
8437500/1000000000 = 0.0084375 cubic meters
2006-11-14 15:52:26 · answer #2 · answered by jacobrcotton 3 · 0⤊ 0⤋
volume = pi x r^2 x h
r= 0.075 m h = 1.5 m
V= pi x 0.075^2 x 1.5 = 0.0265 cubic meter
2006-11-14 15:52:29 · answer #3 · answered by yog 2 · 0⤊ 0⤋
[(pi)R^2]Height
150=D so 75=R
75^2=5625
5626(1.5)=8437.5*pi=26507.188014663880449528553546421
or about 26507.188
2006-11-14 15:56:23 · answer #4 · answered by Zikau 3 · 0⤊ 0⤋
pie are square times height
2006-11-14 15:49:37 · answer #5 · answered by gussie r 3 · 0⤊ 0⤋
area=2*pie*r*h
=2*3.14*(150/2000)*1.5
=.7m2
2006-11-15 03:24:07 · answer #6 · answered by virendra s 2 · 0⤊ 0⤋
pi * r^2 * h
2006-11-16 15:50:05 · answer #7 · answered by Mr.answers 2 · 0⤊ 0⤋