Cecil, Paula. "Football Follies - Congruent Triangles". OER Commons. Institute for the Study of Knowledge Management in Education, 04 Apr. 2019. Web. 22 Dec. 2024. <https://oercommons.org/authoring/53312-football-follies-congruent-triangles>.
Cecil, P. (2019, April 04). Football Follies - Congruent Triangles. OER Commons. Retrieved December 22, 2024, from https://oercommons.org/authoring/53312-football-follies-congruent-triangles.