What conjecture might have Robbie made? What other conjecture could he have made?

Question

Robbie drew three different triangles. He measured the lengths of the side and the angles in each triangle. He compared the length of the longest side with the measures of the angles in each triangle.

Answer 1

the longest side is opposite the largest angle

the smallest side is opposite the smallest angle

each triangle's 3 angles sum to 180 degrees