Question

find the curved surface area or lateral surface area of a cylinder whose height is 14cm and radius is 10cm​

Answer 1

$lsa \: of \: cylnder = 2\pi \: rh \\ = 2 \times \frac{22}{7} \times 10 \times 10 \times 14 \\ = 8800 \: cm {}^{2}$
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Answer 2

$\blue{\bold{\underline{\underline{Answer:}}}}$

$\green{\therefore{\text{C.S.A\:of\:cylinder=880\:cm}^{2}}}$

$\orange{\bold{\underline{\underline{Step-by-step\:explanation:}}}}$

$\green{ \underline \bold{Given : }} \\ : \implies \text{Radius(r) = 10\: cm} \\ \\ : \implies \text{Height(h) = 14\: cm} \\ \\ \red{ \underline \bold{To \: Find : }} \\ : \implies \text{C.S.A\: of \: cylinder = ? }$

• According to given question :

$\bold{As \: we \: know \: that} \\ : \implies \text{C.S.A\: of \: cylinder} =2\pi rh \\ \\ : \implies \text{C.S.A\: of \: cylinder} =2 \times \frac{ 22}{7} \times 10 \times 14\\ \\ : \implies \text{C.S.A\: of \: cylinder} =2 \times 22 \times 20 \\ \\ \green{ : \implies \text{C.S.A\: of \: cylinder} =880 \: {cm}^{2}} \\ \\ \bold{Some \:formula's\: related \: to\:this\:topic} \\ \pink{\circ\: \text{T.S.A\: of \: cylinder} =2\pi r(h + r)} \\ \\ \pink{\circ\:\text{Volume\: of \: cylinder} = \pi r^{2}h}$