How can you tell the difference between a supplementary angle and a complementary angle in a line drawing

A supplementary angle is two angles which equal 180 degrees and a complimentary angle equals 90. A ninety degree angle should be straight like an L while a 180 will be a straight line. They will both have a line coming out of it which indicates the two angles that will add up to equal either 90 or 180 degrees. Hope this helps! :)

All about the same size in the city the game was