What is another name for a square, other than polygon

What is the missing reason in step 5? linear pair postulategivendefinition of complementary anglescongruent complements theorem

Mrs. morton has a special reward system for her class. when all her students behave well, she rewards them by putting 3 marbles into a marble jar. when the jar has 100 or more marbles, the students have a party. right now, the the jar has 24 marbles. how could mrs. morton reward the class in order for the students to have a party?

Which statements regarding efg are true? check all that apply.