question_answer 1)

                Find the length of the side of a square where area is \[441\,\,{{m}^{2}}\].

Answer:

                Area of the square \[=441\,\,{{m}^{2}}\]. \[\therefore \] Length of the side of the square \[=\sqrt{441}\,m\]

	21
2	\[\overline{4}\]          \[\overline{41}\] ?4
41	41                 ? 41
	0

  Therefore, \[\sqrt{441}=21\]. Hence, the length of the side of the square is 21 m.