Question

I didn't understand my teacher when she tried to explain this to me

Answer 1

First, let's find the distance x between the bottom of the slide and the ladder using the Pythagorean theorem:

`\begin{gathered} 41^2=9^2+x^2\rightarrow41^2-9^2=x^2 \\ \rightarrow x=\sqrt[]{41^2-9^2} \\ \rightarrow x=40 \end{gathered}`

Now for the grid: You have to fill in the bubbles that you would use to write down 40, as following: