JAMB Mathematics 2021 Objective — Question 34
Question 34 of 40 from the Joint Admissions and Matriculation Board (JAMB) Mathematics 2021 Objective paper, with the correct answer and a full explanation.
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34. An arc of a circle subtends an angle 70° at the center. If the radius of the circle is 6cm, find the area of the sector subtended by the given angle (a) 22cm² (b) 44cm² (c) 66cm² (d) 88cm²
- A. 22cm²Correct
- B. 44cm²
- C. 66cm²
- D. 88cm²
Explanation
Area of sector = θ/360° × πr² = 70/360 × 22/7 × 6² = 22cm².
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