GATE 2021 IN – Question 2
The mirror image of the text TRIANGLE about the x-axis is which of the four choices shown?

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Correct answer: (B) Image B
Explanation
Reflection maps (x,y) to (x,−y). The letters keep their left-to-right order but each is inverted vertically. Matching every reflected letter, including the asymmetric G and L, gives **B**; horizontal reversal would correspond to another mirror axis.