Question

A prism has a surface area of 50 mm2.

Which sentence describes the effect of measuring the surface area in square centimeters

Answer 1

\(\large \begin{array}{llll}
1cm&10mm\\
1cm^2&10^2mm^2
\end{array}\implies
\begin{array}{ccllll}
cm^2&mm^2\\
\hline\\
1&10^2\\
x&50
\end{array}\implies \cfrac{1}{x}=\cfrac{10^2}{50}\)

what do you think?