<PRE><B>Question 936547</B>
d = sqrt( ww + hh )
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square both sides:
dd = sqrt( ww + hh )^2
dd = ww + hh
ww = dd - hh
w = sqrt( dd - hh )
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w = sqrt( 42*42 - 18*18 )
w = 37.947331922
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answer:
width = 37.95 inches
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