Question on: SS1 Mathematics - Surafce Area And Volume Of Solid Shapes
A \(perfectly\) \(cylindrical\) \(cup\) is \(7cm\) tall and has a base radius of \(2.5cm\). What is its capacity when three-quarters full?
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\(the\ volume\ of\ a\ cylinder = \ {\pi r}^{2}h\)
\(the\ volume\ of\ a\ cylinder = \ {\left( \frac{22}{7} \right)(2.5)}^{2}(7)\)
\(the\ volume\ of\ a\ cylinder = \ 137.5{cm}^{3}\)
\(capacity\ at\ three - quarter\ level = \ \frac{3}{4}(137.5) = 103.125{cm}^{3}\ or\ .103\ litres\)
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