Math, asked by hibanafeesa, 1 year ago

find the radius of a cylinder of hieght 21cm and volume 3234cm square​

Answers

Answered by kithumonu
3

Answer:

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Answered by zaidazmi8442
0

h = 21 \\  \\  r =  {?}  \\ \\    volume \: of \: cylinder = 3234 {cm}^{2}  \\ \\ \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: \pi {r}^{2}h =  3234 \\  \\  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:   \frac{22}{7}  \times  {r}^{2}  \times 21 = 3234 \\  \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  {r}^{2}  =   \sqrt{49 }  \\ \\   \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \:  \: r = 7cm \\ \\  so \: radius \: of \: the \: cylinder \\  base= 7cm

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