Question 1113457
Draw and label the description.  Triangle base 150 meters, height of unknown y, and one angle at A is 36 degrees and other angle at B is 48 degrees.


A possible start using the picture might be  
{{{system(tan(36)=y/x,tan(48)=y/(150-x))}}}.


Solve one of these for x and substitute into the other,
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{{{y=(150*tan(48)*tan(36))/(tan(36)+tan(48))}}}