Which are perfect square trinomails? Select two options

Can (2,3 and square root 10) be sides ona right triangle?

Due to a packaging error, 4 cans labeled diet soda were accidentally filled with regular soda and placed in a 12 pack carton of diet soda. two cans were randomly selected from this 12 pack. what is the probability that both cans were regular soda?

Find all the angles that satisfy the equation cos(θ)=32