Law of Cosine formula not working

I'm using MathCAD 9.0.0.0. I'm not sure why I'm getting the wrong answer. The calculation should be...

R = 329.687 N

...but I'm getting...

R = 108695.156 N

Is there something wrong with my settings?

Thanks,

Brent

Best answer by Werner_E

Law of cosine is R²=P²+... and NOT R=P²+...

So you have to use the square root to get R

Answer

25-Diamond I

Law of cosine is R²=P²+... and NOT R=P²+...

So you have to use the square root to get R

Author

10-Marble

Thank you again!!!!

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