Post-UTME Mathematics 2018 Objective — Question 14
Question 14 of 20 from the Post-UTME Screening (Post-UTME) Mathematics 2018 Objective paper, with the correct answer and a full explanation.
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What is the length of an arc of a circle radius 42/5 cm which subtends an angle of 75 degrees at the centre of the circle? [pi = 22/7]
- A. 5.5cm
- B. 11.0cm
- C. 22.0cm
- D. 55.0cmCorrect
Explanation
Arc length = (75/360) x 2 x (22/7) x (42/5) = (75/360) x 264 = 55.0cm.
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