Joey has a piece of string that is 12 in. long. He puts tape on the string to divide it into sections of 3 in., 4 in., and 5 in., as shown below.
Time m
8 Mini
e
3 in.
4 in.
5 in.
School
He folds the string so the ends touch and then pulls the tape to form a triangle with side lengths equal to the
lengths of each of the three section. Next he measures the angles of the triangle. What does this experiment
prove?
the Pythagorean theorem
the triangle inequality theorem
the converse of the Pythagorean theorem
the converse of the triangle inequality theorem