Recall that in a 45 degrees - 45° - 90 degrees triangle, if the legs each measure x units, then the hypotenuse measures x square root of 2 units.
A
72 pi minus 144 times square millimeterB
72 pi minus 72 times square millimeterC
288 pi minus 144 times square millimeterD
288 pi minus 288 close square millimeter