long length 34 cm
short length 23.5 cm
a2+b2=c2
34+ 23.5=1708.25
c=square root 1708.25
c=41.3 cm
a2+b2= c2
41.3+7.5=
x=square root 1761.94
x=41.97cm
length of diagonal
=41.97
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