Question 1185145
If the two triangle ends (both as right-triangles) could be shuved together to get rid of the rectangular part, then there are 


Left right triangle:  leg x and y, angle opposite of y is 34 degree; angle opposite of x is 56 degree.
Right right triangle: leg 100-x and y, angle opposite of y is 48 degree, and angle opposite of 100-x is 42 degree.


The two triangles together form a segment  of 220-120=100 meters; split into x and 100-x.


To find what is y, the HEIGHT of the original trapezoid:

{{{system(y/x=tan(34),y/(100-x)=tan(48))}}}-------------use this system to solve for y.

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{{{y=(100*tan(34)*tan(48))/(tan(34)+tan(48))}}}

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{{{highlight_green(y=41.96452)}}}


and then,...
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