The ladder reaches 19.938 foot high from the ground on the wall.
A right angled triangle is a triangle that has one of its angle measure as 90 degree.
It is given that
Ladder Length = 22 foot
The angle between the ladder and the ground is 65 degree.
When the ladder leans on a wall , the wall makes 90 degree with the ground and the ladder is the hypotenuse of the right angled triangle formed.
The figure is attached with the answer.
sin 65 = Height of the wall / Hypotenuse
0.9063 = Height of the wall / 22
Height of the wall = 19.938 foot
Therefore the ladder reaches 19.938 foot high from the ground on the wall.
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