document.write( "Question 134971: A circle has a diameter of 20cm.A chord is 6cm from the center of the circle. How long is the chord? \n" ); document.write( "
Algebra.Com's Answer #98826 by vleith(2983)\"\" \"About 
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Use the Pythagorean theorem\r
\n" ); document.write( "\n" ); document.write( "\"a%5E2+%2B+b%5E2+=+c%5E2\"
\n" ); document.write( "in this case, c=10 (the radius), a = 6 so solve for b\r
\n" ); document.write( "\n" ); document.write( "You can see this is a 3:4:5 triangle. So b = 8\r
\n" ); document.write( "\n" ); document.write( "The chord will be 8+8 = 16
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