Answer :
a square area=legnth times width
but for a square, legnth=width so
area=legnth^2
are=49
49=legnth^2
square root of both sides
7=legnth
the answer is 7
but for a square, legnth=width so
area=legnth^2
are=49
49=legnth^2
square root of both sides
7=legnth
the answer is 7