Question

Find the curved surface area of a cylinder whose base radius is14m and the height is 30cm

Answer 1

Height of the cylinder (h) = 30cm =30/100 m
= 0.3m
Base radius (r) = 14m
Now,
Curved surface area of a cylinder = 2πrh
Substituting values of r,h in the formula get
C.S.A = 2*3.14*14*0.3
By solving we get,
C.S.A = 26.4cm^2

Answer 2

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

$\green{\therefore{\text{C.S.A\:of\:cylinder=26.4\:m}^{2}}}$

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

$\green{ \underline \bold{Given : }} \\ : \implies \text{Radius(r) = 14\: m} \\ \\ : \implies \text{Height(h) = 0.3\: m} \\ \\ \red{ \underline \bold{To \: Find : }} \\ : \implies \text{C.S.A\: of \: cylinder = ? }$

• According to given question :

$\bold{As \: we \: know \: that} \\ : \implies \text{C.S.A\: of \: cylinder} =2\pi rh \\ \\ : \implies \text{C.S.A\: of \: cylinder} =2 \times \frac{ 22}{7} \times 14 \times 0.3\\ \\ : \implies \text{C.S.A\: of \: cylinder} =2 \times 22 \times 0.6\\ \\ \green{ : \implies \text{C.S.A\: of \: cylinder} =26.4 \: {m}^{2}} \\ \\ \bold{Some \:formula's\: related \: to\:this\:topic} \\ \pink{\circ\: \text{T.S.A\: of \: cylinder} =2\pi r(h + r)} \\ \\ \pink{\circ\:\text{Volume\: of \: cylinder} = \pi r^{2}h}$