engineering
a) If, in Fig. 11.19, BC represents horizontal ground and AB a vertical flagpole, then the angle of elevation of the top of the flagpole, A, from the point C is the angle that the imaginary straight line AC must be raised (or elevated) from the horizontal CB, i.e. angle . A C B
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engineering
a) If, in Fig. 11.19, BC represents horizontal ground and AB a vertical flagpole, then the angle of elevation of the top of the flagpole,
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