/geometry/triangles/images/triangle-concurrency-points/
/geometry/triangles/images/obtuse-triangles/
/geometry/triangles/images/formulas/
/geometry/triangles/images/acute-triangles/
/geometry/triangles/images/equilateral-triangles/
/geometry/triangles/images/medians-of-a-triangle/
/geometry/triangles/images/exterior-angles/
/geometry/triangles/images/triangle-inequality-theorem/
/geometry/triangles/images/right-triangles/
/geometry/triangles/images/ppt/
