document.write( "Question 106902: I was wondering if you could help me with this question! I dont even know where to start! Thank you!
\n" ); document.write( "It is estimated that the average diameter of peeled logs coming into your sawmill is 14 inches.
\n" ); document.write( "a) What is the thickness of the largest square timber that can be cut from the average log?
\n" ); document.write( "b)If the rest of the log is made into mulch, what percent of the original log is the square timber?
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Algebra.Com's Answer #77773 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
In other words, you have a 14\" circle, what is the largest square that can fit inside of your circle.
\n" ); document.write( "
\n" ); document.write( "The diagonal line is also the radius of the circle (7 inches).
\n" ); document.write( "The diagonal line is also the hypotenuse of the right, isoceles triangle with sides s,s, and 7 inches.
\n" ); document.write( "Since it's a right triangle, you can use the Pythagorean theorem.
\n" ); document.write( "\"s%5E2%2Bs%5E2=7%5E2\"
\n" ); document.write( "\"2s%5E2=7%5E2\"
\n" ); document.write( "\"s=7%2Fsqrt%282%29\"
\n" ); document.write( "The side of the square is 2s long, so the largest square that can be cut from the circle will be
\n" ); document.write( "\"t=2s=14%2Fsqrt%282%29\"
\n" ); document.write( "t=9.9 inches
\n" ); document.write( "b) The area of the circle equals the area of the square plus the leftover(mulch).
\n" ); document.write( "1.\"A%5Bc%5D=A%5Bs%5D%2BA%5Bm%5D\"
\n" ); document.write( "Percentage of mulch area to total area is equal to
\n" ); document.write( "\"A%5Bm%5D%2FA%5Bc%5D\"
\n" ); document.write( "Divide equation 1. by \"A%5Bc%5D\"
\n" ); document.write( "1.\"A%5Bc%5D%2FA%5Bc%5D=A%5Bs%5D%2FA%5Bc%5D%2BA%5Bm%5D%2FA%5Bc%5D\"
\n" ); document.write( "\"1=t%5E2%2F%28pi%29R%5E2%2BA%5Bm%5D%2FA%5Bc%5D\"
\n" ); document.write( "\"A%5Bm%5D%2FA%5Bc%5D=1-t%5E2%2F%28pi%29R%5E2\"
\n" ); document.write( "\"A%5Bm%5D%2FA%5Bc%5D=1-%2814%5E2%2F2%29%2F%28%28pi%29%2A7%5E2%29\"
\n" ); document.write( "\"A%5Bm%5D%2FA%5Bc%5D=1-%28128%29%2F%28153.9%29\"
\n" ); document.write( "\"A%5Bm%5D%2FA%5Bc%5D=.168\"
\n" ); document.write( "16.8% of the tree ends up as mulch.
\n" ); document.write( "83.2% of the tree ends up as the square.
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