A triangular field has sides of length 100 m, 40 m and 60 m. Find the length(in meters) of the wire required to fence the boundary of the field.
A square field has side 20 m. Find the length of the wire required to fence it four times.
If a triangular field has sides 210 m, 180 m and 230 m long, then a wire of is required to fence the field.