Question 694551
escalator 35 feet
angle 34deg

Consixer a right triangle

the escalator is the hypotenuse.
The floor height is the opposite side.

the ground makes an angle of 34 deg with the escalator

Cos Theta = base/hypotenus

Sin 34 = height /hypotenuse
35 Sin 34 = height

35*0.559 = height

height = 19.67 feet