Question

a newly-planned tree needs to be staked with three wires. each wire is attached to the trunk 3ft. above the ground, and then anchored to the ground 4ft. from the base of the tree. how much wire is needed for 6 trees

Answer 1

       | \
3ft   |   \
       |_ _\
        4ft
a²+b²=c²           Pythagorean Theorem
3²+4²=c²           simplify
c=√(3²+4²)        isolate c
c=5

c*6=answer      because you need wire for 6 trees
5*6=answer
answer=30

You will need 30 feet of wire