Question

From a horizontal distance of 80.0 m, the angle of elevation to the top of a flagpole is 18°. Calculate the height of the flagpole to the nearest tenth of a metre.

Answer 1

Height= horizontal distance×tan theta

Therefore height =80×tan18$^\circ$

=25.993 metres

The height of the pole to the nearest tenth of a metre =26.0 metres.