Find GH also, Thank you !

Determine the force in each member of the loaded truss. Make use of symmetry of the truss and of the loading. Forces are positive if in tension, negative if in compression. B D 4.0 m A 4.6 m 4.6 m 4.6 m 4.6 m H G F 31 kN 55 KN 31 KN Answers: AB - i KN AH - KN BC - KN BH - KN KN KN 8 8 8 8 8 KN KN KN DF - KN EF - KN FG - KN