Question

2 cm7 cm7 cmWhat is the surface area, in cm2, of the figure shown above?

Answer 1

The surface area of this rectangular prism is given by:

$\begin{gathered} SA=2(lw+lh+wh) \\ where \\ l=7 \\ w=7 \\ h=2 \\ so\colon \\ SA=2(7\cdot7+7\cdot2+7\cdot2) \\ SA=2(49+14+14) \\ SA=154cm^2 \end{gathered}$