A point X lies in the interior of rectangle ABCD . If AX=11 cm, BX=9 cm and CX=10 cm, what is DX ? Express your answer in simplest radical.
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<3
By the British Flag theorem,
DX^2 + 81 = 121 + 100
DX^2 = 140
DX = sqrt(140) = 2sqrt(35)
