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JAMB Mathematics 2013 Objective — Question 24

Question 24 of 50 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2013 Objective paper, with the correct answer and a full explanation.

In the diagram, find the value of x.

Diagram for question 24

A. A. 45°
B. B. 15°
C. C. 30°
D. D. 40°Correct

Explanation

Using exterior angle and isosceles triangle properties: x=40°.

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