document.write( "Question 728465: Given right triangle ABC, find the approximate length of side BC. BA = 2 and angle B is 90 degrees while angle C is 20 degrees. Side AC is the hypotenuse. \r
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document.write( "(A) 0.18
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document.write( "(B) 4
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document.write( "(C) 5.49
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document.write( "(D) 5.9
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document.write( "(E) 2.12\r
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document.write( "I already tried taking tanO=(2)/(x)(the O has a straight line going through the middle) and got tan(20 degrees)(2) but when I do that I get .72794 and that isn't one of the answers to pick from... \n" );
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Algebra.Com's Answer #445426 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Given right triangle ABC, find the approximate length of side BC. BA = 2 and angle B is 90 degrees while angle C is 20 degrees. Side AC is the hypotenuse. \n" ); document.write( "---- \n" ); document.write( "Angle C(20 degrees) is opposite side BA(2). \n" ); document.write( "Draw the picture. \n" ); document.write( "BC is the base and is \"x\" \n" ); document.write( "---- \n" ); document.write( "tan(20) = 2/x \n" ); document.write( "x = 2/tan(20) = 5.49 \n" ); document.write( "------------------------ \n" ); document.write( "Comment: \n" ); document.write( "Make sure you draw a properly labeled picture when \n" ); document.write( "you work these problems. \n" ); document.write( "------ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( "================== \n" ); document.write( " \n" ); document.write( "(A) 0.18 \n" ); document.write( "(B) 4 \n" ); document.write( "(C) 5.49 \n" ); document.write( "(D) 5.9 \n" ); document.write( "(E) 2.12 \n" ); document.write( " \n" ); document.write( " |