G.GCO.9 Exploring Isosceles Triangles (VB)
STUDENTS:
Use the limited toolbar in the GeoGebra window below to construct a triangle that ALWAYS REMAINS ISOSCELES! (Be sure it passes the DRAG TEST!)
QUESTION:
Use the ANGLE tool to measure this triangle's interior angles. Move the vertices around. What do you notice? Explain as best as you can.