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August 2nd, 2016, 06:11 PM   #1
Tae
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Geometry help please

A plane cuts sphere O in a circle ⊙P that has diameter 2√34. If the diameter of sphere O is 20, how far is the plane from O?
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August 2nd, 2016, 06:53 PM   #2
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Hi Tae and welcome to the forum.

You've got an isosceles triangle with equal sides 10 and "base" 2√34. Find the height and you've found your required distance.
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