WAEC Mathematics 2024 Objective — Question 15
Question 15 of 50 from the West African Examinations Council (WAEC) Mathematics 2024 Objective paper, with the correct answer and a full explanation.
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15. Make R the subject of the relation V = πl(R² - r²).
- A. R = √(V/πl + r²)Correct
- B. R = √(V/πl - r²)
- C. R = √(V - πlr²)
- D. R = √(V + πlr²)
Explanation
R² = V/πl + r² ⇒ R = √(V/πl + r²).
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