WAEC - Mathematics (2011 - No. 7)
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 \(\pi = \frac{22}{7}\)]
11
14
16
18
설명
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
= \(\frac{22}{7} \times 14^2\) x 14 x 18 = 22 x 28 x 18
= 11088cm3
1000cm3 = \(\frac{1}{1000}\) x 11088cm3
= 11.088
= 11