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OpenStudy (anonymous):
What does the law of cosines reduce to when dealing with a right triangle? A. The Pythagorean theorem B. The formula for a triangle's area C. The law of sines D. The formula for a triangle's area ****My answer: A. The Pythagorean Theorem am i right? :)
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jimthompson5910 (jim_thompson5910):
yep, you nailed it
OpenStudy (anonymous):
whoo hooo!! :) YAYY!! :) thank youuu!! :)
jimthompson5910 (jim_thompson5910):
the -2abcos(C) portion becomes -2abcos(90) if C is the 90 degree angle, but cos(90) = 0, so that portion goes away
OpenStudy (anonymous):
okay :)
OpenStudy (anonymous):
gracias!! :)
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jimthompson5910 (jim_thompson5910):
de nada
OpenStudy (anonymous):
hehe :)
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