Move points A, B, &/or C and observe the isosceles triangle.
1. Write down what you know about isosceles triangles. Ask and neighbor or look it up if you are not sure.[br]2. Write down any observations that you have.[br]3. If line AB and line CA are congruent what do you notice about angle B and angle C? Move around the figure to find out. [br]4. If angle B and angle C are congruent, what do you notice about line AB and line CA? Move around the figure to find out.