Question

Please help me with my calculus homework :)

Answer 1

Given

Answer

Let the side of square be s

s = 10 ft

`\Delta s=\pm0.1ft`
`\begin{gathered} A=s^2 \\ (dA)/(ds)=2s \\ \text{ now error in area is} \\ dA=(dA)/(ds)\Delta s \\ dA=(2s)\pm0.1 \\ dA=2(10)(\pm0.1)=\pm2ft^2 \end{gathered}`