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Photo added edit
An image was added in May of 2006.
Angle edit
On the internet the common angle of an A frame has a 73 + 73 + 34 degree angle. How was this number determined? The foot of the A is on 17 degree angle 73+17=90 Is there a page detailing the strength VS stability of the A frame in relation to the angle? For example if the angle is increased to 80 degrees, the inside top of the A is at 20 degree angle, how much more weight can it support? A perfect triangle is 180/3, or three 60 degree angles, if constructed , the material of the A frame could bow inward or outward under stress at that angle.