If the slant height and base radius of a right circular cone are 6.5 and 3.5 respectively, the total surface area of the cone is___(Take $π = 22 / 7$ )

$210 {c m}^{2}$

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$120 {c m}^{2}$

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$110 {c m}^{2}$

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$100 {c m}^{2}$

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Solution

The correct option is C
$110 {c m}^{2}$

Given $l = 6.5, r = 3.5$

Total Surface area of the tomb= $π (l + r) = 110 s q . c m$

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If the slant height and base radius of a right circular cone are 6.5 and 3.5 respectively, the total surface area of the cone is___(Take π=22/7 )

The correct option is C 110cm2 Given l=6.5,r=3.5 Total Surface area of the tomb= π(l+r)=110sq.cm

If the slant height and base radius of a right circular cone are 6.5 and 3.5 respectively, the total surface area of the cone is___(Take $π = 22 / 7$ )

The correct option is C
$110 {c m}^{2}$

Given $l = 6.5, r = 3.5$

Total Surface area of the tomb= $π (l + r) = 110 s q . c m$