Which of the following are valid names for the given triangle?

Jack has a piece of red ribbon that is two times as long as his piece of blue ribbon. he says that he can use two different equation to find out how long his piece of red ribbon is compared to his piece of blue ribbon is. is he correct? explain his reasoning

If sin(x) = 0 and cos(x) = 1, what is tan(x)?

Find the distance between the point (-3,-4), and (see the picture below)