Step-by-step explanation:
A ladder that is 15 feet long leans against the side of a house
Length of ladder = 15 feet
The angle of elevation of the ladder is 80°
Refer the given figure
We need to find height h.
We have
[tex]sin80=\frac{h}{15}\\\\h=15\times sin80=14.77ft[/tex]
The height from the top of the ladder to the ground = 14.77 ft