Question

if radius of a cone is doubled
a cone is doubled keeping the
slant height then find
ratio between
curved surface area to the original one.
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Answer 1

Answer:

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Answer 2

Answer:

π2r^2 + π2rL

Step-by-step explanation:

let r be the radius

and L be the slant hieght

curved surface area of a cone. = πr^2 + πrL

if r = 2r then

curved surface area of a cone = π2r^2+π2rL