Question

The radius and height of a cylinder are in the ratio 3:2 .If its Volume is 19404 cm² .Find the Curved surface area of cylinder .


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Answer 1

1848 cm^2

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Answer 2

Answer:

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Step-by-step explanation:

➪Given☟︎︎︎

The radius and height of a cylinder are in the ratio 3:2 .If its Volume is 19404 cm² .Find the Curved surface area of cylinder .

➪To find☟︎︎︎

➪Curved surface area of cylinder.

➪Solution☟︎︎︎

• ➪Let the radius and height of cylinder be 3x and 2x respectively.

• ➪volume of cylinder = pie r*rh

• ➪19404 = 22/7*3x*3x*2x

• ➪19404*7 =22*9x²*2x

• ➪19404*7/22 =18x³

• ➪135828/22=18x²

• ➪6174-18x³

• ➪6174/18-x³

• ➪343 =x³

• ➪7=x therefore x = 7

➪Required Answers☟︎︎︎

• ➪Radius = 3x=3*7=21 cm

• ➪Height= 2x = 2*7 = 14cm

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