Question

find the volume of a cylinder circumference of base is 1.0 cm and height is 20 CM

Answer 1

hiii!!!

here's ur answer...

given the circumference of the base of the cylinder is 1cm = 10mm

therefore 2πr = 10mm

==> 2 × 22/7 × r = 10mm

==> 44/7 × r = 10mm

==> r = 10/1 × 7/44

==> r = 70/44

==> r = 35/22mm

given height of the cylinder is 20cm = 200mm

now,

volume of the cylinder = πr²h

= 22/7 × (35/22)² × 20

= 22/7 × 1225/484 × 20

= 5390000/3388

= 1590.9mm³

in cm³ = 1590.9/1000

= 1.59cm³ ( approximately )

hope this helps u..!!

Answer 2

☺☺ HERE IS YOUR ANSWER ☺☺

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circumference of cylinder = 2πr
2× 22/7 × r = 1
r = 7/44 cm
h = 20 cm

Volume of cylinder = πr^2h
=22/7 × 7/44 × 744 × 20
=21560/13552
= 1.59 cm^3
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☺ HOPE IT HELPS YOU ☺

THANKS....