Suppose a ladder is 15 feet in length and is leaning against the side of a building. It reaches the top of the second floor, which is 10 feet above the ground. With this information...
a) The ladder forms a right triangle with the building.
b) The ladder forms a 45-degree angle with the ground.
c) The ladder reaches a height of 15 feet.
d) The ladder reaches a height of 25 feet.