(1d.p.). Rectangle \(= 18.8 \times 10 = 188~\text{cm}^2\) Total surface area \(= 28.3 + 28.3 + 188 = 244.6~\text{cm}^2\) (1d.p.). If a cone is filled with water it is possible to pour 3 full cones ...
Don't forget for the total surface area, you will need to add the area of the circular base: \(\text{Area of a circle} ~=~ \pi \times {r}^{2}\) 3. \(\text{Curved surface area of a cone} ...
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