What is the least number of squares that must be added, so that the line AB becomes a line of symmetry?

A

$1$

B

$2$

C

$3$

D

$4$

Medium

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Solution

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Correct option is

B

$2$

Line of symmetry is defined as it divides the figure into two equal mirror halves. So from the above figure minimum $2$ squares should be added so that line AB becomes a line of symmetry. Hence the correct answer is option B