document.write( "Question 1076513: Use the given information to solve the triangle for A = 36°, B = 98°, c = 16 \n" ); document.write( "
Algebra.Com's Answer #691169 by Edwin McCravy(20060)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Same as question 1076218\r\n" );
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document.write( "We find the third angle C by the fact that the three angles\r\n" );
document.write( "of any triangle must have sum 180°.\r\n" );
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document.write( " A  +  B  + C = 180°\r\n" );
document.write( "36° + 98° + C = 180°  \r\n" );
document.write( "     134° + C = 180°\r\n" );
document.write( "            C = 46°\r\n" );
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document.write( "So we fill in angle C as 46°\r\n" );
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document.write( "Next we use the law of sines:\r\n" );
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document.write( "We substitute what we know so far:\r\n" );
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document.write( "eq. 1:  \r\n" );
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document.write( "Using the 1st and 3rd expressions of eq. 1:\r\n" );
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document.write( "\"matrix%281%2C3%2Ca%2Fsin%28%2236%B0%22%29%2C%22%22=%22%22%2C16%2Fsin%28%2246%B0%22%29%29\"\r\n" );
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document.write( "Cross-multiply:\r\n" );
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document.write( "\"matrix%281%2C3%2Ca%2Asin%28%2246%B0%22%29%2C%22%22=%22%22%2C16%2Asin%28%2236%B0%22%29%29\"\r\n" );
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document.write( "Guess we'll just round that off to a = 13.1, and fill that in:\r\n" );
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document.write( "Using the 2nd and 3rd expressions of eq. 1:\r\n" );
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document.write( "\"matrix%281%2C3%2Cb%2Fsin%28%2298%B0%22%29%2C%22%22=%22%22%2C16%2Fsin%28%2246%B0%22%29%29\"\r\n" );
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document.write( "Cross-multiply:\r\n" );
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document.write( "\"matrix%281%2C3%2Cb%2Asin%28%2246%B0%22%29%2C%22%22=%22%22%2C16%2Asin%28%2298%B0%22%29%29\"\r\n" );
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document.write( "Guess we'll just round that off to b = 22.0  and fill that in:\r\n" );
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document.write( "And now we're done.\r\n" );
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document.write( "Edwin

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