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OpenStudy (anonymous):
A surveyor, standing 80 ft. from the base of a building, measures the angle of elevation to the top of the building to be 75^{\circ}. How accurately must the angle be measured for the percentage error in estimating the height of the building to be less than 4%?
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OpenStudy (anonymous):
The "75^{\circ}" should be 75 degrees.
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