Question

If a ladder is leaning against a building at a specified angle with a specified number of feet between the bottom of the ladder and the base of the building, what formula do I use to find the length of the ladder?

Answer 1

If the angle is `theta` and the distance is 'a' ft, the length of the ladder(x) can be found by using the relation cos`theta`= `a/x`, or x= asec`theta`