__Cone__$Plane Surface Area=πr_{2}$

$l_{2}=r_{2}+h_{2}$

$Curved Surface Area=π×r×l$

$Total Surface Area=πrl+πr_{2}=πr(r+l)$

where,

$’r’ is the radius of the base$

$’l’ is the slant height$

$’h’ is the perpendicular height$

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$Plane Surface Area=πr_{2}$

$l_{2}=r_{2}+h_{2}$

$Curved Surface Area=π×r×l$

$Total Surface Area=πrl+πr_{2}=πr(r+l)$

where,

$’r’ is the radius of the base$

$’l’ is the slant height$

$’h’ is the perpendicular height$

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Surface Area of a Cone

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The total surface area of a cone of radius $2r $ and length $2l$, is?

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