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- Properties of Triangles
Isosceles and equilateral triangles
- Lesson: 1a1:03
- Lesson: 1b2:05
- Lesson: 1c1:49
- Lesson: 1d2:05
- Lesson: 24:25
Isosceles and equilateral triangles
Lessons
- 1.Find x.a)
b)
c)
d)
- 2.In △DEF, EY is a perpendicular line to DF and Y is the midpoint of DF. Why is △DEF an isosceles triangle? Show your reasoning.