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Mathematics 9 Online
OpenStudy (salazarblack):

I need help guys! >_< The sphere is sliced with 2 parallel planes which are positioned on different sides of the centre .One of them cuts the sphere creating a circle with 49pidm^2 area and the other creating a circle with 400pidm^2 area .If the distance between those two planes is 39dm,radius of the sphere is?

OpenStudy (anonymous):

You have to draw this.

OpenStudy (salazarblack):

i'm not really sure how it would look like...

OpenStudy (anonymous):

|dw:1404081829431:dw|

OpenStudy (salazarblack):

|dw:1404081813771:dw|

OpenStudy (salazarblack):

yea something like that :D

OpenStudy (anonymous):

Okay, first step is to find \(r_1\) and \(r_2\), I believe.

OpenStudy (anonymous):

|dw:1404082006477:dw|

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