a. c=151.7c=151.7c=151.7 b. senA=0.5623senA=0.5623senA=0.5623, cosA=0.8273cosA=0.8273cosA=0.8273, tanA=0.6797tanA=0.6797tanA=0.6797, cscA=1.778cscA=1.778cscA=1.778, secA=1.209secA=1.209secA=1.209, cotA=1.471cotA=1.471cotA=1.471