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 A

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 (1) matches the left-right reversal: the slanted bar at the top, the two arrow-like spikes at the upper left, the stepped zig-zag on the right side, the long spike pointing to the lower left and the square-cornered open box at the bottom (open towards the bottom edge). Option (2) draws the bottom box with a slanted, curved top and side, option (3) has a stepped notch on the left edge of the upper spike, and option (4) has a pentagon-like bulge at the bottom instead of the square-cornered box.
Answer: (1) the figure given as option 1