WAEC Mathematics 2019 Objective — Question 26
Question 26 of 145 from the West African Examinations Council (WAEC) Mathematics 2019 Objective paper, with the correct answer and a full explanation.
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26. An arc subtends an angle of 72° at the centre of a circle. Find the length of the arc if the radius is 3.5cm. [Take π = 22/7]
- A. 6.6cmCorrect
- B. 8.8cm
- C. 4.4cm
- D. 2.2cm
Explanation
Length of arc = (θ/360)×2πr = (72/360)×2×(22/7)×3.5 = 6.6cm.
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