The curved surface area of a cylindrical pillar is 264 sq.m and its volume is 924 cub.m. Find the ratio of its diameter to its height
πr2h2πr2h = 924264
=> r = (24/364) x 2 = 7m
2πrh = 264 ⇒ h = (264 × 722×12 ×17) = 6m
Required Rato =2r/h =14/6 = 7:3
Find the surface area (in cm2) of a sphere of diameter 28 cm.
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