An angle is a multiple or fraction of its supplement or complement: find the angles

1. A.
   $40^\circ, 40^\circ, 140^\circ, 140^\circ$
2. B.
   $30^\circ, 30^\circ, 150^\circ, 150^\circ$
3. C.
   $30^\circ, 45^\circ, 75^\circ, 210^\circ$
4. D.
   $60^\circ, 60^\circ, 120^\circ, 120^\circ$

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1. A.
   $12^\circ$
2. B.
   $15^\circ$
3. C.
   $18^\circ$
4. D.
   $20^\circ$

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