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Solve for X from a Diagram : Setting up Triangles

I would like assistance in setting up the attached problem in order to solve it.
A=2.875. X is the value that needs to be solved. In the book they give the value of X as 2.1091


Solution Preview

See attachment.
angle EDC = angle DEL = 56 degree (alternate angle)
angle CDO ...

Solution Summary

A distance X is solved for using a diagram. An explanation is provided.