Determine angles a, b, and c shown in the Figure 1. The vertical lines are, of course, parallel.

FIGURE 1
Problem 2.
Determine length ED for the similar triangles shown in Figure 2.

FIGURE 2

Problem 3.
Determine the resultant and indicate the angle or slope for the right-angle force system shown in Figure 3.

FIGURE 3

Problem 4.
Determine the horizontal and vertical components of the vector shown in Figure 4.

FIGURE 4
Problem 5.
Find the moment about point A for the lever shown in Figure 5.