convex or concave?
Q. Is this the upper (convex) or lower side of a poinsettia leaf?
A. upper
Try switching your perception from convex to concave.
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Uploaded on December 21, 2008
Taken on December 21, 2008
convex or concave?
Q. Is this the upper (convex) or lower side of a poinsettia leaf?
A. upper
Try switching your perception from convex to concave.
68
views
0
faves
0
comments
Uploaded on December 21, 2008
Taken on December 21, 2008