Question

From a distance of 113 m, the angle of elevation to the top spire of a tower is 31°.

How high is the tower to the nearest metre?

Answer 1

68m

Explanation:

Right angled trigonometry. Opposite = Tan * Adjacent

Opposite = Tan(31) * 113m

Opposite = 68m (Rounded up)

If you struggle with Right-angled trigonometry try and watch some videos on it. It will help in your work and exams (SAT's or GCSE's).

Hope this helps :)