Determine the tension in each of the three supporting cables and the required height h

The street-lights at A and B are suspended from
the two poles as shown. If each light has a weight of 50 lb,
determine the tension in each of the three supporting cables
and the required height h of the pole DE so that cable AB is

[thedumbconspirator]

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[SportacusSsj]

my boy FinalAnswer back at it again with the help

[judasuanperino]

This problem can be solve logical manner. We know that Force AB both side must be horinzotal therefore there must be equal to angle 45 degrees. And then from other side of which height is required we all know that 45 degrees the adjacent and opposite must be equal. Therefore 5 adjacent and 5 for opposite, then lastly 18+5 that's 23