find the ratio of the curved surface area of hemisphere and cone whose height and radius are same.
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ròot2/1..................
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Let the height and radius of the cone and hemisphere be r respectively.. as they are of same length..
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curved surface area of hemisphere = 2 x pi x r^2
curved surface area of cone = pi x r x l (its height and radius are same i.e l=r)
= pi x r x r
= pi x r^2
ratio = 2 x pi x r^2/ pi x r^2
= 2:1 ( after cancellation of pi and r^2)
curved surface area of cone = pi x r x l (its height and radius are same i.e l=r)
= pi x r x r
= pi x r^2
ratio = 2 x pi x r^2/ pi x r^2
= 2:1 ( after cancellation of pi and r^2)
mark my answer brainliest!!!
ratio will be root 2 ratio 1
mistake l is not eqal to r
no its 2:1
mentioned that hyt and radius are same for cone
l= r root 2
maan mat maan
rght
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