Find the total surface area of a right circular cylinder whose height is 15 cm and diameter of the cross section is 14 m.

910 $c m^{2}$

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968 $c m^{2}$

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1000 $c m^{2}$

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1112 $c m^{2}$

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Solution

The correct option is B
968 $c m^{2}$

Given Height (h) = 15 cm , radius(r) = 7 cm

TSA of a cylinder = $2 π r (h + r)$

= (2 x $\frac{22}{7}$ x 7) (15 + 7)

= 44 x 22

= 968 $c m^{2}$

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Find the total surface area of a right circular cylinder whose height is 15 cm and diameter of the cross section is 14 m.

The correct option is B 968 cm2 Given Height (h) = 15 cm , radius(r) = 7 cm TSA of a cylinder = 2πr(h+r) = (2 x 227 x 7) (15 + 7) = 44 x 22 = 968 cm2

The correct option is B
968 $c m^{2}$

Given Height (h) = 15 cm , radius(r) = 7 cm

TSA of a cylinder = $2 π r (h + r)$

= (2 x $\frac{22}{7}$ x 7) (15 + 7)

= 44 x 22

= 968 $c m^{2}$