Gerry flies his helicopter from a heliport on a bearing of S50°W for 75 km until he stops at Town P which is due west of Town Q.
If Town Q is due south of the heliport, find the distance between the heliport and Town Q in kilometres, correct to two decimal places. (3 marks)
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\(\text{Let}\ \ x=\ \text{distance from heliport and Town Q}\)
| \(\cos 50^{\circ}\) | \(= \dfrac{x}{75} \) | |
| \(x\) | \(= 75 \times \cos 50^{\circ}\) | |
| \(= 48.209…\) | ||
| \(= 48.21\ \text{km} \) |