The angle of depression of a cycling kid measured from a hill with 10.9 m high is 52o. When the kid cycles along the hillside and stops, the angle of depression becomes 25.3o. What is the distance cycled by the kid along the hillside?
Step 1: Draw a diagram to represent the situation.
Step 2: Devise a plan.
Find the lengths of QS and QR. Then, QS – QR = distance cycled by the kid.
QS – QR = (23.1 – 8.5) m = 14.6 m
Therefore the kid has cycled 14.6 metres.