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January 28, 2015

January 28, 2015

Posted by **Yadlay** on Saturday, April 17, 2010 at 5:48pm.

- Geometry -
**Reiny**, Saturday, April 17, 2010 at 7:39pmIsn't the equation

(x-2)^2 + (y-3)^2 + (z+6)^2 = 25

And on the x-z plane, isn't y = 0 ?

so

(x-2)^2 + (0-3)^2 + (z+6)^2 = 25

(x-2)^2 + (z+6)^2 = 25 + 9

(x-2)^2 + (z+6)^2 = 34

take it from there.

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