saxon geometry answers lesson 81
+ y_2}{2} \right) \] \[ = \left( \frac{2 + 8}{2}, \frac{3 + 7}{2} \right) = (5, 5) \] Answer: The midpoint is at (5, 5). Triangle Properties and Theorems Example Problem: Given triangle ABC with sides AB = 7, AC = 10, and BC = 12, determine if the triangle is scalene, isosce