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Forum URL: http://www.cut-the-knot.org/cgi-bin/dcforum/forumctk.cgi
Forum Name: This and that
Topic ID: 772
Message ID: 4
#4, RE: Pythagorean Theorem Incomplete?
Posted by alexb on Jun-19-07 at 08:23 PM
In response to message #0
>if c = the longest side then

> + = c^2

What is this expression in the brackets?

1/90 * angle ab?

Is it the angle between a and b divided by 90? Why?

I cannot find a reasonable explanation for those expressions. But you may want to earch for the Cosine Law.