Answer:
I believe it says the vertex at Y is moved to T:
the angle of each side changes by 360 / 8 = 45 at each vertex
If 3 vertices separate Y and T the the total rotation would be
3 * 45 = 135 deg
The octagon rotated 135 degree.
An octagon is a polygon with eight sides.
The total angle at the center is 360 degree and for a regular octagon, the angle made by each side is equal to 360/8 = 45 degree.
The octagon STUVWXYZ is rotated clockwise such that, the vertex Y moves to T.
Movement of Y to T is moving 3 steps clockwise
= 45* 3
= 135 degree
To know more about Octagon
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