BECE Mathematics 2022 Objective — Question 41
Question 41 of 120 from the Basic Education Certificate Examination (Junior WAEC) (BECE) Mathematics 2022 Objective paper, with the correct answer and a full explanation.
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If the area of a semi-circle is 308cm², calculate its radius. (Use π = 22/7)
- A. 20cm
- B. 18cm
- C. 17cm
- D. 14cmCorrect
- E. 12cm
Explanation
½ × 22/7 × r² = 308, so r² = 308 × 7 ÷ 11 = 196. r = 14 cm.
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