A cylindrical container has a base radius of 14cm and height 18cm. How many litres...
MATHEMATICS
WAEC 2011
A cylindrical container has a base radius of 14cm and height 18cm. How many litres of liquid can it hold? correct to the nearest litre [Take \(\pi = \frac{22}{7}\)]
- A. 11
- B. 14
- C. 16
- D. 18
Correct Answer: A. 11
Explanation
Volume of cylinder = \(\pi r^2 h\)
= \(\frac{22}{7} \times 14^2\) x 14 x 18 = 22 x 28 x 18
= 11088cm3
1000cm3 = \(\frac{1}{1000}\) x 11088cm3
= 11.088
= 11
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