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November 21, 2014

November 21, 2014

Posted by **y912f** on Monday, November 24, 2008 at 2:30pm.

- trig -
**drwls**, Monday, November 24, 2008 at 3:23pmThe lengths L of three sides are sqrt 98, sqrt 8 and sqrt 106. You can prove that using

L = sqrt[(y2-y1)^2 + (x2-x1)^2]

The pythagorean relationship a^2 + b^2 + c^2 is therefore obeyed, since 98 + 9 = 106.

What does that tell you about the triangle?

You could prove it in other ways, but this appeared to be the simplest.

- trig -
**y912f**, Monday, November 24, 2008 at 3:27pmso tey are vertices of a triangle?

- trig -

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