Answer:
15.5 units
Explanation:
This problem is on the mensuration of flat shapes, this time a square shape.
we know that the area of a square is given as
area= length*length
area= l^2
from the problem the area is given as
area= 240 units^2
substitute area for the area in the equation and then we solve for length we have
240= l^2
squareing both sides we have
√240= l
l= 15.49 units
to the nearest hundreths it is
15.5 units