The reactions at supports A and B using the equilibrium equations. Sum of vertical forces and moments about point A.
Sum of vertical forces:

Sum of moments about point A:


Sum of forces in x and y directions to find forces in members AC and AD.
Sum of forces in x and y directions to find forces in members BC and BD.
The forces in the members of the truss are found using the method of joints. The reactions at supports A and B are both 10 kN. The forces in the members can be calculated by analyzing each joint.