Help with my match homework!!!!! (gr. 9)?

Question

a square piece of land has an area between 6.25 km2 (squared) and 12.24 km2 (squared) .

a) what is the least possible side length of the square..

b) what is the gratest possible side length of the square..

c) a surveyor determined that the side of lenth is 2.8 km. what is the area of the square? show the work so i can learn....please!! :(

Answer 1

Because A = s^2 in a square:

a) take the square root of 6.25 (the lowest value for area), which is 2.5km

b) take the square root of 10.24 (the greatest possible value for area), which is around 3.2km

c) do 2.8^2 which equals 7.84km^2

Answer 2

For a find the square root of 6.25 and for b find the square root of 12.24, since area is side squared.  Then multiply 2.8 by itself, for the same reason.