These questions are the homework questions for this lesson. Remember to submit your answers and check how you did before logging out. You are expected to go back into the lesson to correct any problems you missed, analyzing what your mistakes were.
In Lesson 9.2.1 you found a relationship between teh squares of the sides of a triangle and the type of triangle (acute, obtuse, or right.) You discovered that if teh sum of the squares of the two shortest sides (the legs) in a triangle equals the square of the length of the longest side, then the triangle is a right triangle.