Math, asked by sanjaysanju740, 1 year ago

If sa of sphere is 346.5cm×cm. calculate it's radius and volume

Answers

Answered by mysticd
6
let the radius of the sphere = r cm
surface area of the sphere = 346.5 cm²
4πr² =346.5

4*22/7 * r² = 346.5

r² = (346.5 *7)/(4*22)

r² =27.5625
r =5.25 cm

volume =V = 4/3 π r³

= 4/3 * 22/7 * (5.25)³
=606.375 cm³

Answered by Anonymous
1
Solutions :-


Given :

Surface area of the sphere = 346.5 cm²

Let the radius be r


Find the radius of sphere :-

=> 4πr² = 346.5
=> 4 × 22/7 × r² = 346.5
=> r² = (346.5 ×7)/(4×22)
=> r² =27.5625
=> r =5.25 cm


Find the volume of sphere :-

Volume = 4/3 π r³
= 4/3 × 22/7 × (5.25)³
= 606.375 cm³


Hence,
Radius of sphere = 5.25 cm
Volume of sphere = 606.375 cm³
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