12 = 60 degrees.
The "C" pattern means that whatever is on the top/bottom corner will be equal to the opposite one.
This is a proportional problem.
The distance 'd' corresponds to the 9 inches.
The 7-ft pin corresponds to the size 's'.
Convert 7ft to 7/3 yds. This way you have equal ratio of yds to inches.
Hey, I'll be happy to assist you, but I need a picture or diagram with the measurements of the polygon and the poly itself :)
What do you mean? Question not clear.