nd the surface area o14cmOesurfaceareaofasphereof diameter.(ii) 21 cm( – InterviewSolution

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1.	nd the surface area o14cmOesurfaceareaofasphereof diameter.(ii) 21 cm(iii) 14cm, Fitotal surface area of a hemisphere of radiuym) 35m
Answer» area=4πr^2i. d=14cmr=14/2=7cma=4×π×7^2=615.75cm^22. d=21cmr=10.5cma=4×π×10.5^2=1385.44cm^23. 35mr=17.5ma=4π×17.5^2=3848.45m^2

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