The circumference of a circle = pi x diameter
Circumference = 3.14 x 32 = 100.48 meters (rounded to two decimal places)
The farmer needs to build a fence around the edge of the field, which has a circumference of 100.48 meters. So the total length of fence needed is 100.48 meters.
Each meter of fence cost £15.95, therefore the cost of building the entire fence can be calculated as:
Total Cost = Length of fence x Cost per meter of fence Total Cost = 100.48 x £15.95 Total Cost = £1601.08
Therefore, it would cost the farmer a total of £1601.08 to build a fence around the edge of the circular field.