19M.1.SL.TZ1.T_8

pestleMathematicsAISLPaper 119M· sl-3-2-2d-and-3d-trigsource ↗

A buoy is floating in the sea and can be seen from the top of a vertical cliff. A boat is travelling from the base of the cliff directly towards the buoy.

The top of the cliff is 142 m above sea level. Currently the boat is 100 metres from the buoy and the angle of depression from the top of the cliff to the boat is 64°.

Draw and label the angle of depression on the diagram.

Markscheme / solution

* This question is from an exam for a previous syllabus, and may contain minor differences in marking or structure.

(A1) (C1)

Note: The horizontal line must be shown and the angle of depression must be labelled. Accept a numerical or descriptive label.

[1 mark]

Examiners’ report

[N/A]