JSCE Mathematics 2023 Objective — Question 28

Question 28 of 80 from the Junior Secondary Certificate Examination (JSCE) Mathematics 2023 Objective paper, with the correct answer and a full explanation.

What is the size of the angle ABC constructed using ruler and compasses?

A. 75°
B. 100°
C. 105°Correct
D. 120°

Explanation

The construction gives a right angle (90°) plus a bisected 30° angle (15°): 90° + 15° = 105°.

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