WAEC Mathematics 2020 Objective — Question 19

Question 19 of 50 from the West African Examinations Council (WAEC) Mathematics 2020 Objective paper, with the correct answer and a full explanation.

In the diagram, PQ//SR. Find the value of x.

A. 34
B. 46Correct
C. 57
D. 68

Explanation

Using the sum of angles at a point/alternate angles from the diagram (68 deg and 246 deg markings): x + 68 + 246 = 360 (sum of angles at a point), giving x = 360-314 = 46.

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