Answer:
A.) w=
or width = area divided by length
B.) 5 meters
Explanation:
A.) You can use this equation and plug in the numbers like w(width) = 10(area of rectangular section) ÷ 2(length)
B.) 10 divided by 2 is 5, so 5 is your width
You can work backwards to check using A = L x W
5 x 2 is 10
Hope this helps! :)