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OpenStudy (anonymous):
help help help!! suppose a triangle has sides a b c and let theta be the angle opposite the side of length b . if cos theta>0, what must be true
a)a^2+b^2=c^2
b)a^2+c^2>b^2
c) a^2+c^2
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OpenStudy (anonymous):
OPTION a..ITS pythagoras thorem..
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