passpadi

2003

Mathematics

JAMB

An aeroplane flies due north from airport P to Q and then flies due east R. If Q is equidistant from P and R, find the bearing of P and R

A.

90°

B.

135°

C.

225°

D.

270°

Correct Answer: 225°

Explanation

Since PQ = QR, Δ PQR is a right angle isosceles triangle ∴ ∠PQR = 45° => The bearing of P from R = 180 + 45 = 225°

Since PQ = QR, Δ PQR is a right angle isosceles triangle ∴ ∠PQR = 45° => The bearing of P from R = 180 + 45 = 225°
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