Question

If radius of cylinder is 3 cm and height is 80 cm find csa

Answer 1

Answer:

csa of a cylinder =2^rh

=2×22/7×3×80

=44/7×3×80

=44/7×240

=10560/7

=1508.57 cmsq

Step-by-step explanation:

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Answer 2

$\: \: \: \:\:\:\: \: \sf{ curved \: surface \: area \: = ? }$

$\: \: \: \: \: \: \: \: \sf{radius \: of \: cylinder \: = 3 \: cm}$

$\: \: \: \: \: \: \: \: \: \: \: \sf{height \: of \: cylinder \: = \: 80\:cm}$

$\: \: \: \: \: \: \: \: \: \: \pink{\boxed { \sf{csa \: of \: cylinder \: = 2\pi rh}}}$

$\: \: \: : ⟹ \: \: \: \: \: \sf {\: 2\:×\:π\:×\:3\:×80}$

$\: \: \: \: \: \: \: : ⟹ \sf{2 \times \frac{22}{7} \times 3 \times 80}$

$\: \: \: \: \: \: \: \: \:\:\:\: : ⟹ \sf{ CSA = 1507.96\: cm}$