What is the perimeter of a square whose area is 64 square kilometers? .
A 16 km
B.32 km
c. 64 km
D.256 km

Jack has a rectangular piece of land, the area of which is represented by a1 = 9.5l. his brother has a different rectangular piece of land, the area of which is represented by a2 = l(14 − l). let a represent the area in square meters and l represent the length in meters of the pieces of land. the two equations plotted on a graph meet at a point as shown in the image