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Pythagoras' corner (Posted on 2017-06-16) Difficulty: 3 of 5
Slice off the corner of a right rectangular prism so that the result is a tetrahedron with three right triangular faces mutually perpendicular to each other. The fourth face is a triangle formed by the hypotenuses.

Prove: The sum of the squares of the areas of the three right triangles is equal to the square of the area of the fourth.

No Solution Yet Submitted by Jer    
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  Subject Author Date
re: Cutting Corners?Jer2017-06-17 10:34:23
Some ThoughtsCutting Corners?broll2017-06-17 07:03:51
solutionDaniel2017-06-16 11:56:04
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