The curved surface area of a cylindrical pillar is 264 m square and its volume is 924 m cube. find the diameter and height of the pillar
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Answer:
diameter of the pillar=14cm
height of the pillar=6cm
Step-by-step explanation:
curved surface area of cylinder =2πrh
264=2x22/7xrxh
264x7/2x22=rxh
132x7/22=rxh
6x7=rxh
rh=42cm²
volume of a cylinder=πr²h
924=22/7xrxrxh
924=22/7xrx42
924=22xrx6
924/22x6=r
154/22=r
r=7cm
rh=42
7xh=42
h=42/7
h=6cm
diameter=2x7
diameter=14cm
diameter of the pillar=14cm
diameter of the pillar=14cmheight of the pillar=6cm
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