Homework Help?

For the third one (the other two have been answered correctly), ignore the length of the stake. It doesn't matter. The measurements you need are 2 feet and 5 feet. The wires will be attached to the base of the stake, so the triangle will have sides of 2' and 5'. The tricky part is that the length of the hypotenuse is not the answer. So, your hypotenuse is √29, but the length you're looking for is √29 + 6".