Question

One way to recognize a line of symmetry is to look for a line that divides the original image into:

A. two congruent parts.
B. three congruent parts.
C. two perpendicular parts.
D. two intersecting parts.

Answer 1

@agent0smith

Answer 2

I guess two congruent parts.

Answer 3

@agent0smith is correct

this is one example

http://etc.usf.edu/clipart/76000/76033/76033_a_lg.gif

where the letter A is split up vertically into 2 congruent parts by a line of symmetry (dashed vertical line)