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a=16x
h=9x
16x*9x=2736
144x²=2736 :144
x²=19
x=√19 xm
a=16√19
h=9√19
d²=a²+h²
d²=(16√19)²+(9√19)² =256*19+81*19=6403
d=√6403
d≈80,02 cm
80,02:2,5=32 cal przekątna