Answer:
The value is

Explanation:
From the question we are told that
The height of the flag pole is

The position of the cables on the pole with respect to its top is

The position of the cable from the base of the pole is

The number of cables is n = 3
Generally the length of one of the cable is obtained using Pythagoras theorem as follows

=>

=>

Generally the total number of yards of cable that will be required is mathematically represented as

=>

=>
