In the triangle below, what ratio is cos θ?

Ineed to learn how to solve this problem

What is the name of a polygon that has four congruent sides and theses angle measures 60,120,60,120?

Match the vocabulary to the proper definition. in probability, two events in which 1. conditional probability the outcome of one event is independent of the outcome of a second event. 2. dependent events in probability, two events in which the outcome of one event is dependent on the outcome of a second event. the probability of an event in which the outcome of the event is conditional on the outcome of one or more different events. 3. independent events