Explore the properties of isosceles triangles, and then reflect on the special relationship between the base angles and legs of isosceles triangles. What properties related to the altitude of isosceles triangles did you observe?

Original file created by [url=https://www.geogebra.org/u/malsman]Jill Alsman[/url][url=https://www.geogebra.org/u/louiecw], Louiecw[/url]