If height and radius of a cone are and respectively and it is given that height of the cone is same as diameter of the base and then find the slant height.
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h=2r
l=√r^2+h^2
l=√r^2+2r^2
l=√5r^2
l=√5 r
l=√r^2+h^2
l=√r^2+2r^2
l=√5r^2
l=√5 r
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