perplexus.info :: Probability : Triangular Cubes

Triangular Cubes (Posted on 2004-12-04)

Three points have been chosen randomly from the vertices of a cube. What is the probability that they form (a) an acute triangle; (b) a right triangle?

See The Solution Submitted by Erik O.

Rating: 3.0000 (2 votes)

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Answer

| Comment 10 of 11 |

(a) The probability that these points form an acute triangle is 0.1425857.

(b) The probability that these points form an right triangle is 0.85714286.

Posted by K Sengupta on 2008-03-15 03:42:16

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