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October 28th, 2011, 02:33 AM   #1
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is there a negative angle?

Hi,

I am solving now a geometry problem, and I wanted to ask if it is possible to have a negative value for an angle?

I know that with the trigonometry functions it is possible, but I wanted to know if an angle of triangle can have a

negative value?

Thank you.
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October 28th, 2011, 03:00 AM   #2
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Re: is there a negative angle?

Hello there
you can't have a negative value for an angle
in the same sense that you can't have a negative value of a length a square
and a volume. However, a negative sign might mean direction in the same sense it
is used in vectors and trigonometry.
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