JSCE Mathematics 2024 Objective — Question 49

Question 49 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2024 Objective paper, with the correct answer and a full explanation.

Calculate the value of the angle y - x using the figure below;

A. 65°
B. 70°Correct
C. 80°
D. 90°

Explanation

x = 180° - 130° = 50°. The exterior angle y = 70° + 50° = 120°. y - x = 120° - 50° = 70°.

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