Question

the area of a square field is 1 hectare what is what is its perimeter​

Answer 1

Answer:

Area=1 hectare

so length of each side of the square field is root 1 hectare

so, perimeter=4*root 1hectare =4root 1 hectare

and the answer is 400m

Answer 2

Answer:

area =10000m2

a^2=10000

a=100

perimeter =4a

=4×100=400m^2