+0  
 
-1
104
2
avatar+761 

Help.

what is the approximate volume of the sphere if the surface area is 482.8mm? My answer is 997.53 but round and it'll be 998. Right? 

NotSoSmart  May 16, 2017
Sort: 

2+0 Answers

 #1
avatar+77011 
+2

Let's see, NSS

 

482.8  =  4pi r^2

 

482.8 / ( 4 pi )  =  r^2

 

√  [ 482.8 / (4 pi) ]   =  r ≈  6.2

 

So.....the volune  is  

 

(4/3) pi ( 6.2)^3  ≈ 998.3

 

Yep.....close enough...... ≈  998

 

Good job  !!!!

 

 

cool cool cool

CPhill  May 16, 2017
 #2
avatar+761 
+1

Ok thanks! :)

NotSoSmart  May 16, 2017

9 Online Users

avatar
We use cookies to personalise content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners.  See details