Question

How u high up was the top of the ladder against the wall of the house ?

Answer 1

The diagram can be shown as,

The height of the top of the ladder can be determined as,

`\begin{gathered} h=\sqrt[]{13^2-4^2} \\ =\sqrt[]{169-16} \\ =\sqrt[]{153} \\ =12.36\approx12.4ft \end{gathered}`

Thus, the requried height of the top of the ladder to the nearest tenth is 12.4 ft.