Can you explain to me (detailed) on how to do this problem? I will give you a brainly if you get this right.

To find the area of rectangles you have to multiply its height by its width. So, 12x2 equals 24. Therefore the area of the rectangle is 24km.
Given :
To find :
Formula :
procedure :
putting value of the given data into formula :
Area of rectangle = 12km ×2 km
= 24km ^2
Ans = 24km^2
[tex] { \boxed{\pink{ \bold{area \: of \: rectangle = 24 {km}^{2} }}}}[/tex]