A fence is 140 feet long and 50 feet wide. How much fencing is needed?

I assume you mean the field is 140x50. So, that being the length and width, add them up. Now double that, because there are 4 sides, not just 2.

Is the fence 50 feet wide? Or is the area to be fenced 50 feet wide?

To determine the amount of fencing needed, we need to calculate the perimeter of the fence. This can be found by adding up the lengths of all the sides of the fence.

In this case, we are given that the fence is 140 feet long and 50 feet wide.
The fence consists of two equal lengths and two equal widths.

To find the perimeter, we add up the lengths of the sides:
Perimeter = 2 * Length + 2 * Width

Perimeter = 2 * 140 ft + 2 * 50 ft
Perimeter = 280 ft + 100 ft
Perimeter = 380 ft

Therefore, you would need 380 feet of fencing to enclose the area described.