If you look at a folded index card though a pinhole, you see the border as a(n) _____ because the card looks _____.
A) illumination edge; flat
B) illumination edge; 3-D
C) reflectance edge; flat
D) reflectance edge; 3-D

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The Answer of  If you look at a folded index card though a pinhole, you see the border as a(n) _____ because the card looks _____.
A) illumination edge; flat
B) illumination edge; 3-D
C) reflectance edge; flat
D) reflectance edge; 3-D

If You Look at a Folded Index Card Though a Pinhole