the curved surface area of a cylindrical pillar is 264 cm square and its volume is 24 m cube .find the diameter of cylindrical pillar
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Let the height of the cylinder be h and the radius be r.
Now
CSA = 264cm
2πrh= 264
h= 132/πr........(i)
Now
volume = 24m
πr*rh = 24*100 cm
πr*r * 132/πr = 2400 (from i)
r = 2400/132
r = 200/11cm
now diameter = 200/11 * 2
= 400/11
Now
CSA = 264cm
2πrh= 264
h= 132/πr........(i)
Now
volume = 24m
πr*rh = 24*100 cm
πr*r * 132/πr = 2400 (from i)
r = 2400/132
r = 200/11cm
now diameter = 200/11 * 2
= 400/11
VAnsHDimri00:
tnx for your help
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