document.write( "Question 190346: a chord is 7 cent. from center of circle whose radius is 9 cent in lenght. find the length of chord \n" ); document.write( "
Algebra.Com's Answer #142862 by nerdybill(7384)\"\" \"About 
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a chord is 7 cent. from center of circle whose radius is 9 cent in lenght. find the length of chord
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\n" ); document.write( "Draw a diagram of the problem. Label all the information provided. It'll make it easier for you to see the problem.
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\n" ); document.write( "Let x = 1/2 the length of the chord
\n" ); document.write( "then applying Pythagorean theorem:
\n" ); document.write( "x^2 + 7^2 = 9^2
\n" ); document.write( "x^2 + 49 = 81
\n" ); document.write( "x^2 = 32
\n" ); document.write( "x = sqrt(32)
\n" ); document.write( "x = 4sqrt(2)
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\n" ); document.write( "Length of chord:
\n" ); document.write( "2x = 2(4sqrt(2)) = 8sqrt(2)
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