document.write( "Question 468568: Solve the equation a²+b²=c² for b
\n" ); document.write( "suppose that an isosceles right triangle has a hypotenuese with length 30cm\r
\n" ); document.write( "\n" ); document.write( "I do not understand this equation or how to solve for b, when I have not been given a and c. I am confused on this.
\n" ); document.write( " Then next \"What are the lengths of the triangle?\"
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Algebra.Com's Answer #321563 by ankor@dixie-net.com(22740)\"\" \"About 
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Solve the equation a²+b²=c² for b
\n" ); document.write( "suppose that an isosceles right triangle has a hypotenuse with length 30cm.
\n" ); document.write( ":
\n" ); document.write( "Note that in an isosceles right triangle, a and b are equal, you are given the
\n" ); document.write( "hypotenuse as 30 cm, therefore:
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\n" ); document.write( "a = b
\n" ); document.write( "c = 30
\n" ); document.write( "therefore
\n" ); document.write( "b^2 + b^2 = 30^2
\n" ); document.write( "2b^2 = 900
\n" ); document.write( "b^2 = 900/2
\n" ); document.write( "b^2 = 450
\n" ); document.write( "b = \"sqrt%28450%29\" or \"3sqrt%2850%29\"
\n" ); document.write( "b ~ 21.2132
\n" ); document.write( ":
\n" ); document.write( "\"What are the lengths of the triangle?\"
\n" ); document.write( "b = 21.2132
\n" ); document.write( "a = 21.2132
\n" ); document.write( "c = 30
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