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Plaidfish said:the bottom part of the 2 triangles is concave slightly in the first one
and then convex in the second one..becaue they are rotated 180 deg..look at the point of intersect on each Hor. line....that's the difference in space...

To SPACEPlaidfish said:the bottom part of the 2 triangles is concave slightly in the first one
and then convex in the second one..becaue they are rotated 180 deg..look at the point of intersect on each Hor. line....that's the difference in space...