Question

Find curved surface area of cylinder if radius is 3.5m and height is 20 cm

Answer 1

Step-by-step explanation:

the answer is 4.4 metre hope It helped

Answer 2

${\huge{\star{\underbrace{\tt{\red{Answer}}}}}}{\huge{\star}}$

$\Large{\purple{\tt{\underline{\underline{Given \ :-}}}}}$

• Radius of cylinder = 3.5m
• Height of cylinder = 20cm = ${\sf{\frac{20}{100}m \ = \ \frac{1}{5}m}}$

$\Large{\green{\tt{\underline{\underline{To \ find \ :-}}}}}$

• Curved surface area of cylinder

$\Large{\orange{\tt{\underline{\underline{Solution \ :-}}}}}$

${\sf{\blue{\large{\star \ CSA \ of \ cylinder \ = \ 2\pi rh}}}}$

here,

• r is radius of cylinder
• h is height of cylinder

${\sf{\leadsto \ CSA \ = \ 2\pi rh }}$

${\sf{\leadsto \ CSA \ = \ 2 \ \times \ \frac{22}{7} \ \times \ 3.5 \times \frac{1}{5}}}$

${\sf{\leadsto \ CSA \ = \ 2 \ \times \ \frac{22}{\cancel7} \ \times \ \cancel{3.5} \times \frac{1}{\cancel5}}}$

${\sf{\leadsto \ CSA \ = \ 4.4m^{2}}}$

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Hope it's help ⚓⚓

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