A ladder put up right against a wall will fall over unless put up at a certain angle less than 90 degrees. Given variables length and angle storing the length of the ladder and the angle that it forms with the ground as it leans against the wall, write a Python expression involving length and angle that computes the height reached by the ladder. Evaluate the expression for these values of length and angle:

(a) 16 feet and 75 degrees

(b) 20 feet and 0 degrees

(c) 24 feet and 45 degrees

(d) 24 feet and 80 degrees