Answer:
The height is 28.9 ft
Step-by-step explanation:
The given scenario can be shown in the figure below:
This forms a right-angle triangle.
Applying Pythagorean rule, we have:

Where h is how high above the ground the top of the ladder is touching the house.
Solving for h, we have:
![\begin{gathered} h^2=30^2-8^2 \\ \\ h^2=836 \\ \\ h=\sqrt[]{836} \\ =28.9 \end{gathered}](https://img.qammunity.org/2023/formulas/mathematics/college/ot2g6f77pcfagvmbhsh705udkpv274pxjs.png)
The height is 28.9 ft