Answer:
See Explanation
Step-by-step explanation:
The question is incomplete has the figure of the triangle is not given.
However, the following steps will guide you.
To solve this question;
you need the lengths of the threes sides of the triangular fields
Represent these lengths with a, b and c
Next;
Sum these lengths together;
This gives the required length of fencing
[tex]Length = a + b + c[/tex]
Take for instance;
[tex]a =4;\ b = 3;\ c = 5[/tex]
The required length of fence would be
[tex]Length = 4 + 3 + 5[/tex]
[tex]Length = 12\ units[/tex]
Apply these steps and you'll get your answer