Trusses as shown in the figure below are to be constructed to support the roof of a building. The truss is to have a 16-foot horizontal base (joist) that spans from one wall to the opposite wall. The vertical center strut is 4 feet long.
(a) Vertical struts are located 3 horizontal feet inside each wall. How long are these vertical struts?
(b) The rafter extends 1.5 horizontal feet outside the wall. If the top of the wall is 8 feet above the floor, how high above the floor is the outside tip of the rafter?
