question_answer 7)

Can two angles be supplementary if both of them are:                                     (i) acute?                             (ii) obtuse?                         (iii) right?                                                                              

Answer:

                (i) No! Two acute angles are not supplementary.                                          (ii) No! Two obtuse angles are not supplementary.                                              (iii) Yes! Two right angles are supplementary.