Notice the curved line from D to B, it's actually a circle, with radius 4, i didn't draw it good. And P is also on a circle with radius 2. There are two circles in the square. AD is 4 units.
I tried to set midpoint M to be (0,0), and P to be (1/4,sqrt(3)/4) since it's not a unit circle, it has a radius of two. And i tried to suppose there was a point T on line AD, which is (-2,sqrt(3)/4). So finding the distance should be easy,
TP = sqrt((x2-x1)^2+(y2-y1)^2)
= sqrt((9/4)^2)
= 9/4
However I think I may be incorrect. Can anyone help me confirming the answer? Thanks.
prog_tom
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