Math, asked by niting1078, 10 months ago

Total surface area of hemisphere is 942cm2 find its volume

Answers

Answered by soumensabui100
2

Answer:

The total surface area of a hemishpere is 942 cm² Find its volume where π is 3.14 Get the answers you need, now! ... volume of sphere = 2/3×3.14×12.24×12.24.×12.24 =3838.68..cm^3 hope this helps u !! Step-by-step explanation:

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Answered by swati4678
11

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here \: is \: your \: answer \\ total \: surface \: area \: of \: hemisphere \:  = 3\pi \:  {r  }^{2}  \\ now \:  \pi =  \frac{22}{7}  \: and \: let \: the \: radius \: be \: x \\ and \: total \: surface \: area \: of \: hemsphere \: given \:  = 942 {cm}^{2}  \\ so \: the \: radius \: will \: be \:  \\  = 3 \pi \:  {r}^{2}  = 942 {cm}^{2}  \\  = 3 \times  \frac{22}{7}  \times x \times x = 942 \\  = 3 \times  \frac{22}{7}  \times  {x}^{2}  = 942 \\  =  \frac{66}{7}  {x}^{2}  = 942 \\  =  {x}^{2}  = 942 \times  \frac{7}{22}  \\   {x}^{2}  =  \frac{3297}{11}  \\   {x}^{2}  = 299.73 \\  = x =  \sqrt{ 299.73}  \\  = x = 17.31 \\ now \: voulme \: of \: hemisphere \: is \:  \frac{2}{3} \pi \:  {r}^{3}  \\  = \pi =  \frac{22}{7}  \: and \: radius \:  = 17.31 \\  =   \: so \:the \: volume\: of \: hemisphere \: will \: be \\  = \frac{2}{3}  \times  \frac{22}{7}  \times 17.31 \times 17.31 \times 17.31 \\  =  \frac{342322.259}{21}  \\  = 16301.06 \\ hence \: the \: volume \: of \: hemisphere \: will \: be \: 16301.06 {cm}^{2}  \\ hope \: it \: helped \: u \\ plz \: mark \: as \: brianliest

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