🎯 Knowledge Check
Maths — SURFACE AREAS AND VOLUMES
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Frequently Asked Questions
The total area covered by the surfaces of a 3D solid.
The area of only the curved part of a solid.
The sum of all faces (curved + flat) of a solid.
The space occupied by a solid measured in cubic units.
To find materials needed to cover an object like paint or wrapping.
To find capacity, such as water tanks and containers.
Surface area \(\Rightarrow cm^2,\ m^2;\ Volume \Rightarrow cm^3,\ m^3\).
TSA = 2(lb + bh + hl).
Volume = l × b × h.
TSA = \(6a^2\).
Volume = \(a^3\).
CSA \(= 2\pi rh\).
TSA \(= 2\pi r(r + h)\).
Volume = \(\pi r^2h\).
\( l = \sqrt{r^{2} + h^{2}} \).