document.write( "Question 575162: A square plywood platform has a perimeter which is 8 times the length of a side, decreased by 28. Find the length of a side \n" ); document.write( "
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A square plywood platform has a perimeter which is 8 times the length of a side, decreased by 28. Find the length of a side
\n" ); document.write( "sol:
\n" ); document.write( " side = x
\n" ); document.write( "by formula, perimeter = 4x ----(1)
\n" ); document.write( "given perimeter = 8*x - 28 -----(2)
\n" ); document.write( " equate 1 & 2
\n" ); document.write( " you will get x = 7 units.
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