A clock is a Supplementary because if you bisect it and  up the two angles add up to 180.The flappy part  of a cap is a Supplementary angle because if you add 90 + 90 it will add up to 180.A circle is a Supplementary angle cause if you divide 360 divided by 2 it will equal 180. A chair is a Complementary angle its a right angle because if you measure it  will be 90.A box edge is a Complementary angle because its a right angle if you add the measurement correctly you should get 90.Another one is a edge of a piece of paper if you add 50 plus 40 you should get 90.