Isos Triangles

5.2 Properties of Isosceles Triangles Objectives: 1. Discover a relationship between the base angles of an isosceles triangle. Isosceles Triangle – at least two sides have the same length equilateral triangle – isosceles triangle with all three sides are congruent Parts of Isosceles Triangle: vertex angle – between two  sides Parts of Isosceles Triangle: base angles – angles opposite  sides Parts of Isosceles Triangle: base – side opposite vertex Name each part of the isosceles triangle below. Name each part of the isosceles triangle below. Name each part of the isosceles triangle below. C-27 Isosceles Triangle Conj. If a triangle is isosceles, then base angles are congruent _______________________. C-28 Converse of Isosceles Triangle Conjecture: If a triangle has two congruent angles, it is an isosceles triangle. C-29 Equilateral Triangle Conj. An equilateral triangle is equiangular and an equiangular triangle is equilateral. Find the missing angle measures. ma = mb= Find the missing angle measures. mc = md= Find the missing angle measures. me = mf = mg =