document.write( "Question 1206589: I am having trouble figuring this out and would appreciate some help.
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\n" ); document.write( "A = 79°, b = 73, c = 41\r
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Algebra.Com's Answer #844146 by ikleyn(52830)\"\" \"About 
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\n" ); document.write( "I am having trouble figuring this out and would appreciate some help.
\n" ); document.write( "Use Heron's formula to find the area of the triangle.
\n" ); document.write( "A = 79°, b = 73, c = 41
\n" ); document.write( "Thank you!
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document.write( "In this problem, two sides of a triangle are given, \"b\" and \"c\", and the concluded angle A\r\n" );
document.write( "between them.\r\n" );
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document.write( "For such case, there is very simple formula for the triangle area\r\n" );
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document.write( "    area = \"%281%2F2%29%2Ab%2Ac%2Asin%28A%29\".\r\n" );
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document.write( "By applying it, you get\r\n" );
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document.write( "    area = \"%281%2F2%29%2A73%2A41%2A0.98162718344\" = 1469.00508 square units  (rounded).   \r\n" );
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document.write( "So, doing this way, you get the answer directly, making minimum calculations,\r\n" );
document.write( "which is considered as a right/rational way in Math.\r\n" );
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document.write( "Regarding this instruction on using the Heron's formula,\r\n" );
document.write( "it is possible, but it requires much more calculation job:\r\n" );
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document.write( "    - you first need to find the side \"a\", opposite to angle A, using\r\n" );
document.write( "      the cosine law;\r\n" );
document.write( "    - then you need to apply the Heron's formula, which is complicated itself.\r\n" );
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document.write( "So, this way requires much more calculations, making unnecessary job.\r\n" );
document.write( "Therefore, I would call this way irrational.\r\n" );
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document.write( "Anybody in the theme, will say you that this way is possible, BUT using it is more than strange.\r\n" );
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document.write( "However, for those who like to do unnecessary work, this may seem attractive.\r\n" );
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