Question

The boat is 130 m from the base of a cliff. The cliff is 80m high. Determine, to the nearest degree, the angle of depression of the boat from the top of the cliff.

Answer 1

32 degrees (rounded to nearest angle)

Explanation:

Using trigonometric ratios:

Please refer to the picture of my explanation below.

tan^-1 means inverse, so on calculator remember to use the inverse function, by shifting.