Obtuse Triangle – GeoGebra

ISOSCELES OBTUSE – GeoGebra

degrees in a triangle – GeoGebra

Orthocenter of acute and obtuse triangles – GeoGebra

Class 19 (Nov 10, 2015) Obtuse Triangle – GeoGebra

obtuse triangle – GeoGebra

Triangle Construction – GeoGebra

H - Obtuse triangle - a – GeoGebra

How to check if a triangle is right, acute or obtuse. – GeoGebra

Angulos internos y externos v2 – GeoGebra

circumcenter obtuse – GeoGebra