Math
posted by Danielle .
A ladder is leaned 9m up a wall with its base 5m from the wall. What angle does the ladder make with the ground?

what is arccos5/9 ?
posted by Danielle .
A ladder is leaned 9m up a wall with its base 5m from the wall. What angle does the ladder make with the ground?
what is arccos5/9 ?