Question

Find the surface area of a cuboid of dimensions 26cm 20cm & 12cm.

Answer 1

Given:

`\begin{gathered} \text{Surface Area=2(lb+bh+hl)} \\ \text{Surface Area=}2\lbrack(26)(20)+(20)(12)+(12)(26)\rbrack \\ \text{Surface Area=}2\lbrack520+240+312\rbrack \\ \text{Surface Area=}2\lbrack1072\rbrack \\ \text{Surface Area=}2144cm^2 \end{gathered}`

Surface area is 2144 square cm.