Lesson 3.3 Classifying Triangles & Triangle Angle-Sum Theorem Do Now: Find the measure of angle 1. 62 and x+12 are complementary. 62+x+12 = 90 degrees.

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Lesson 3.3 Classifying Triangles & Triangle Angle-Sum Theorem Do Now: Find the measure of angle and x+12 are complementary. 62+x+12 = 90 degrees. 74+x= x = 16º

The __________________ of the measures of the angles of a triangle is _____________________________.

The ______sum____________ of the measures of the angles of a triangle is _____180 degrees___.

Angle A + Angle B + Angle C = _______. Angle A + Angle B + Angle C =

The sum of angles A, B, and C is C = C = C = 52

3 congruent sides at least 2 congruent sides no congruent sides

-Three equal angles - Three acute angles

- One Right Angle - One Obtuse Angle