Question

Select one:

Answer 1

You know from the definitions of trig functions that
.. tan(42°) = (height of courthouse above measuring device)/(distance to courthouse)
.. (height of courthouse above measuring device) = tan(42°)*(305 ft) ≈ 274.6 ft

Since the measuring device is 5 ft high, the height of the courthouse is approximately 280 ft. (selection C)