Post-UTME Mathematics 2013 Objective — Question 89
Question 89 of 100 from the Post-UTME Screening (Post-UTME) Mathematics 2013 Objective paper, with the correct answer and a full explanation.
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In Fig. 9 below, O is the centre of the circle and ∠ACB=130°. Find ∠DOB.
- A. 100°Correct
- B. 130°
- C. 80°
- D. 25°
Explanation
Using the circle theorem relationships shown in the figure, ∠DOB works out to 100°; the exact figure detail was only partly legible in the source.
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