Question

How to solve this? With working?

Answer 1

1 km = 1000 m

1 km^2 = 1000 x 1000 m^2

So , 3.42 km^2 = 3.42 x 1000000
= 3420000.00 = 3420000 m^2

Answer 2

We know that ---

1 km = 1000 m
1 km x 1 km = 1000 m x 1000 m
1 km^2 = 1000000 m^2

Now,
3.42 km^2 = 3.42 x 1000000 m^2
= 3420000.00 m^2
= 3420000 m^2

Hope This Helps You!