JAMB Mathematics 2020 Objective — Question 39

Question 39 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2020 Objective paper, with the correct answer and a full explanation.

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

A. 090 deg
B. 135 deg
C. 225 degCorrect
D. 270 deg

Explanation

With PQ due north and QR due east and PQ=QR, triangle PQR is a right isosceles triangle; the bearing of P from R works out to 225 deg.

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