Problem 004-mj | Method of Joints

Problem 004-mj
The truss pinned to the floor at D, and supported by a roller at point A is loaded as shown in Fig. T-06. Determine the force in member CG.
 

Truss with rectangular arrangement of members at the center

 

Solution 004-mj

 

Another Solution to 004-mj

 

Sir, bakit wala pong horizontal component na sinolve sa joint E and C. Sa joint E po, aren't both joint G and E carrying 100kn load? Please do correct me po sir/ma'am. Thank you! God blesss