SOLUTION: Total matterials used is 1.3m^2 Diamitar 36cm I need the total height of a cylindar (punching bag) style.

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Question 857823: Total matterials used is 1.3m^2
Diamitar 36cm
I need the total height of a cylindar (punching bag) style.

Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
Total matterials used is 1.3m^2
Diamitar 36cm
I need the total height of a cylindar (punching bag) style.
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Vol+=+pi%2Ar%5E2%2Ah
Vol = 1.3 (cubic meters, not m^2)
Vol = 1300 liters = 1300000 cc
r = 18 cm
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1300000+=+pi%5E18%5E2%2Ah
h+=+1300000%2F%28324%2Api%29
h =~ 1293 cm = 12.93 meters
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If you mean 1.3m^2 surface area:
1.3 m^2 = 13000 cm^2
Each end is pi%2Ar%5E2+=+324pi cm^2 =~ 1017.87 cm^2
2 ends --> 2035.74
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Lateral area = 2*pi*r*h = 36pi*h = 13000 - 2035.74
h = 10964/(36 pi)
h =~96.95 cm = 0.97 meters