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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?
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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
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OpenStudy (anonymous):
Okay, first step is to find \(r_1\) and \(r_2\), I believe.
OpenStudy (anonymous):
|dw:1404082006477:dw|
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