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In triangle ABC;AB=7cm,AC=8cm,angle BAC=48° calculate a.the length BC b.find the size of angle BCA

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In triangle ABC;AB=7cm,AC=8cm,angle BAC=48°...

In triangle ABC;AB=7cm,AC=8cm,angle BAC=48°
calculate
a.the length BC
b.find the size of angle BCA

trigonomentry triangle problems

asked Jun 24, 2015 in Trigonometry Answers by anonymous

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1 Answer

Best answer

Disclaimer: I asked this question and then answered it myself because someone asked this question in a private message. The answer was too hard to explain without drawing it, so I wrote it out by hand. Please excuse the messy handwriting. I gave myself a -40 point bonus to counteract the 40 points I got by answering my own question.

answered Jun 25, 2015 by johnperkins Level 13 User (103k points)
selected Jun 28, 2015 by Rod

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