Looking for some urgent help here on these 2 optimization problems

1) A right triangle whose hypotenuse is SqureRoot3 m long is revolved about one of its legs to generate a right circular cone. Find the radius, height, and volume of the cone of the greatest volume that can be made this way

2) The 8 foot wall shown here stands 27 feet from the building. Find the length of the shortest straight beam that will reach the side of the building from the ground outside the wall

http://img100.imageshack.us/img100/2...problemyz4.jpg