document.write( "Question 564633: My daughter has asked my help with her math and it has been a very long time since I have worked this kind of problem (below). Please help me with the proper formula to use in showing her how to work this type of problem. Thank you.\r
\n" ); document.write( "\n" ); document.write( "ABC is a 30-60-90 triangle with a right angle at B. Use the measure of the side given to find the measure of the indicated side. \r
\n" ); document.write( "\n" ); document.write( "BC= 20, find AB
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Algebra.Com's Answer #365496 by ankor@dixie-net.com(22740)\"\" \"About 
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BC is a 30-60-90 triangle with a right angle at B. Use the measure of the side given to find the measure of the indicated side.
\n" ); document.write( "BC= 20, find AB
\n" ); document.write( ":
\n" ); document.write( "We can use the tangent of 60 degrees to find side AB
\n" ); document.write( "That is: tan(60) = \"%28side+opposite%29%2F%28side+adjacent%29\"
\n" ); document.write( "tan(60) = \"%28AB%29%2F20\"
\n" ); document.write( "1.732 = \"%28AB%29%2F20\"
\n" ); document.write( "AB = 1.732 * 20
\n" ); document.write( "AB = 34.64
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