What is the smallest number of squares that must be added so that the line $A B$ becomes the line of symmetry?

Question

What is the smallest number of squares that must be added so that the line AB becomes the line of symmetry-2431

Toppr Admin · Accepted Answer

As shown in the above figure- marked three squares must be added to make the given figure symmetric about the line AB-

What is the smallest number of squares that must be added so that the line $A B$ becomes the line of symmetry?

$2$
$4$
$3$
$1$