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October 21, 2014

October 21, 2014

Posted by **Camile** on Wednesday, March 2, 2011 at 8:27pm.

- Geometry -
**Reiny**, Wednesday, March 2, 2011 at 9:20pmyou will have similar triangles, and it can be shown quite easily that

x(20-x) = 82

-x^2 + 20x - 64 = 0

x^2 - 20x + 64 = 0

(x-16)(x-4) = 0

x = 16 or x = 4

if one part is 16, the other is 20-16 or 4

if one part is 4, the other is 20-4 = 16

so the two segments are 16 and 4

- Geometry -
**tchrwill**, Tuesday, March 8, 2011 at 11:59amThe altitude to the hypotenuse of a right triangle is the geometric mean between the segments of the hypotenuse created by the point where the altitude intersects the hypotenuse or h^2 = xy.

x and y are the two segments of the hypotenuse.

Therefore, h^2 = 64 = xy and x + y = 20.

64 = y(20 - y) or y^2 - 20y + 64 = 0.

Then, x = [20+/-sqrt(400 - 256)]/2 or y = 16 making x = 4.

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