While hiking you notice a large tree 15.0 m in front of you. 10.0 m from the ground there is a bear in the tree! For some reason you decide to throw a rock at the bear, but at the moment you throw the rock, the bear falls out of the tree. At what angle did you throw the rock if you end up hitting the bear?

Enter your angle in degrees.

Please solve the question step by step. Explain each step clearly.