Lesson: Corollaries of Isosceles Triangle Theorems Mathematics • Second Year of Preparatory School

Students will be able to

• understand that the median of an isosceles triangle from the vertex angle is a perpendicular bisector of the base,
• understand that the bisector of the vertex angle of an isosceles triangle is a perpendicular bisector of the base,
• understand that the straight line that passes through the vertex angle of an isosceles triangle and is perpendicular to the base bisects the base and the vertex angle,
• use the corollaries of the isosceles triangle theorems to solve problems,
• understand that the axis of symmetry of an isosceles triangle is the median that bisects the base.