a) \(\displaystyle∠{3}\) and \(\angle 5\)

b) \(\displaystyle∠{1}\) and \(\displaystyle∠{2},∠{2}\) and \(\displaystyle∠{3},∠{3}\) and \(\displaystyle∠{4},{4}\) and \(\displaystyle∠{5},∠{1}\) and \(\displaystyle∠{5}\)

c) \(\displaystyle∠{4}\) and \(\displaystyle∠{5},∠{3}\) and \(\displaystyle∠{4}\)

d) \(\displaystyle∠{4}\) and \(\displaystyle∠{5},∠{3}\) and \(\displaystyle∠{4}\)

e) \(\displaystyle∠{1}\) and \(\displaystyle∠{2}\)