Question

if the value of it is 3.14 and the radius of a sphere is 2.3 m then find its volume. Round off the answer using significant figure​

Answer 1

Answer:

V = 4/3 π r^3

  = 4/3 π (2.3)^3

= 50.939 m ^3

Rounding off then,

V = 51 m^3

Answer 2

Question :-

if the value of it is 3.14 and the radius of a sphere is 2.3 m then find its volume. Round off the answer using significant figure.

Solution :-

Given that :

• π = 3.14
• radius = 2.3m

Need to find :

• Volume of sphere

Formula :

${\blue{\bigstar}} \: {\underline{\pink{\boxed{\bf{\red{Volume \: of \: sphere = \frac{4}{3} \pi r {}^{3} }}}}}}$

Put the values

$\sf:\longmapsto{ \frac{4}{3} \times 3.14 \times 2.3 {}^{3} } \: \: \: \: \: \: \\ \\ \sf:\longmapsto{ \frac{4}{3} \times 3.14 \times 12.167 } \\ \\ \sf:\longmapsto{ \frac{4}{3} \times 38.2438} \: \: \: \: \: \: \: \: \: \: \\ \\ \sf:\longmapsto{ \frac{152.81752}{3} } \: \: \: \: \: \: \: \: \: \: \: \: \\ \\ \sf:\longmapsto{50.93} \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \: \:$

Volume of sphere is 50.93m³.

By rounding 51m³.

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