document.write( "Question 1001743: A water tank consisting of a cylinder and two hemisphere length of cylinder is 20cm and diameter 14 cm.find the volume of water when tank is half full
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Algebra.Com's Answer #618830 by fractalier(6550)![]() ![]() You can put this solution on YOUR website! Okay, half the volume of the tank is (1/2)V. The radius is 7 cm (half of 14). \n" ); document.write( "But V(total) = V(cylinder) + V(sphere) (since two hemispheres make a full sphere) \n" ); document.write( "V(cyl) = (pi)r^2*L = (pi)(49)(20) = 980 pi \n" ); document.write( "V(sph) = (4/3)(pi)(r^3) = (4/3)(pi)(343) = 1372/3 (pi) \n" ); document.write( "V(tot) = (980 + 1372/3)(pi) \n" ); document.write( "(1/2)V = (490 + 686/3)(pi) cubic cm \n" ); document.write( " |