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If hieght and radius of a cone are h and r respectively and it is given that hieght of the cone is same as diameter of the base

then find the slant height

2
by Ishu111

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then find the slant height

by Ishu111

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l = √r² + h²

given,

diameter = height

or, 2r = h

l = r² + h²

or, l = r² +(2r)² [because h=2r]

l = r² + 4r²

l = 5r² or l = r×√5

therefore, slant height of the cone is 5r²