document.write( "Question 1150871: Two angles of an oblique triangle are 60 and 50 degrees and their included side is 400 cm long. Find the area. Use sine law to determine the remaining sides. \n" ); document.write( "
Algebra.Com's Answer #772424 by josgarithmetic(39628)\"\" \"About 
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As a start, the missing angle opposite the 400 cm side is \"180-60-50=70\" degrees.\r
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\n" ); document.write( "\n" ); document.write( "Law of sines should give equations \"L%2Fsin%2850%29=400%2Fsin%2870%29\" and \"R%2Fsin%2860%29=400%2Fsin%2870%29\". That is taking L is opposite of the 50 degree angle,...\r
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\n" ); document.write( "\n" ); document.write( "L is opposite the 50 degree angle and R is opposite the 60 degree angle.
\n" ); document.write( "\"system%28L=326.08%2CR=368.64%29\"\r
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\n" ); document.write( "\n" ); document.write( "y, for height
\n" ); document.write( "\"y%2FL=sin%2860%29\"
\n" ); document.write( "\"y=326.08%2Asin%2860%29\"
\n" ); document.write( "\"y=282.3935\"\"approximately\"\r
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\n" ); document.write( "\n" ); document.write( "AREA,
\n" ); document.write( "\"%281%2F2%29%2A400%2A282.3935\"
\n" ); document.write( "Round the result as needed.
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