`underline("Fair and square")`

underline("To be in a fix")

If you are fair and square in your work you will definitely prosper.

In the following question, select the number which can be placed at the sign of question mark (?) from the given alternatives. {:(3,4,5),(4,5,3),(underline(4" "),underline("3 "),underline(?" ")),(underline(48),underline(60),underline(105)):}

Which is not correct ? (i) Equilateral Delta is a regular polygon (ii) Square is a regular polygon (iii) underline("Rhombus is a regular polygon")