Question

Which one of the answer figures is the correct mirror image of the problem figure with respect to X-X ?

• A.

  

• B.

  

• C.

  

• D.

  

Hint:

The axis X-X is vertical, so the mirror image reverses left and right while up and down stay unchanged. Compare the outline features one by one with each option.

Answer 1

The Correct Option is C

The mirror line X-X is a vertical line, so the mirror image is obtained by interchanging left and right: every feature on the left of the problem figure moves to the right at the same height, and every feature on the right moves to the left at the same height. The top stays at the top and the bottom stays at the bottom.
Reverse the problem figure left to right and compare it with the options.
Option (3) matches the left-right reversal in all details: the diagonal line from the top left corner, the sharp-peaked inner shape on the left, the bent polygon edge at the upper right, the small wedge at the right wall, the long horizontal line near the bottom and the zig-zag shape at the bottom. Option (1) has a flat-topped notch in place of the sharp peak, option (2) has a straight vertical edge where the polygon should have a slanted edge, and option (4) has an extra long wedge line at the right wall.
Answer: (3) the figure given as option 3