Math
posted by Mary .
a tree needss to be staked with three wires. Each wire is attached to the trunk 3 ft above the ground, then anchored to the ground 4 ft from the base of the tree. How much wire is need for 2 stakes?

This looks like the place to use the Pythagorean theorem. Solve for c to find the length of wire for one stake.
c^2 = a^2 + b^2
c^2 = 3^2 + b^2
c^2 = 9 + 16
c^2 = 25
c = ?