Posted by Swassy on Thursday, January 24, 2008 at 6:46pm.
is triangle DEF with verticies D(3,4), E(2.5), F(0,1) a right triangle?

geometry  Damon, Thursday, January 24, 2008 at 7:41pm
Ah, a slightly different twist :)
For the third time, find the squares of the lengths of the three sides.
If the sum of the squares of the two smaller sides = the square of the third side, it is.
like if
c^2 = a^2 + b^2 it is right
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