document.write( "Question 520544: If the sides a triangle have measurements of 7,8, & 10, how do I find the angles within the triangle? \r
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Algebra.Com's Answer #346126 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
Sides are 7,8, & 10
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document.write( "That's the side-side-side case.  It's done by the law of cosines.\r\n" );
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document.write( "\"cos%28A%29\" = \"%28b%5E2%2Bc%5E2-a%5E2%29%2F%282bc%29\" = \"%288%5E2%2B7%5E2-10%5E2%29%2F%282%2A8%2A7%29\"\r\n" );
document.write( "\"cos%28B%29\" = \"%28a%5E2%2Bc%5E2-b%5E2%29%2F%282ac%29\" = \"%2810%5E2%2B7%5E2-8%5E2%29%2F%282%2A10%2A7%29\"\r\n" );
document.write( "\"cos%28C%29\" = \"%28a%5E2%2Bb%5E2-c%5E2%29%2F%282ab%29\" = \"%2810%5E2%2B8%5E2-7%5E2%29%2F%282%2A10%2A8%29\"\r\n" );
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document.write( "If you calculate those, and take inverse cosines, you'll get\r\n" );
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document.write( "A = 83.33457274°,  B = 52.61680158°,  C = 44.04862567°\r\n" );
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document.write( "Edwin
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