Question 949769
The cable is the hypotenuse(c) of a right triangle with height (a)=(10 yd-4yds)=6 yds, base (b)=(distance from flag pole)=8 yds
{{{c=sqrt(a^2+b^2)}}}
{{{c=sqrt(6^2yds^2+8^2yds^2)}}}
{{{c=sqrt(36yds^2+64yds^2)}}}
{{{c=sqrt(100yds^2)}}}={{{10 yds}}}
And since there are three support cables 3(10 yds)=30 yds total cable is needed.
ANSWER: A total of 30 yards of cable will be required.