Question

Can you guys please help me with on this cause I’m really confused?

Answer 1

A = l * w
3/2km^2  = 3/2km * w
3/2 = 3/2 * w
w = 1

To check:
3/2 =?= 3/2 * w
3/2 =?= 3/2 * 1
3/2 = 3/2

Hope this helps