2-1: Triangles

Theorem 2-1: Triangle-Angle Sum Theorem: The sum of the measures of the angles of a triangle is 180 degreees.

2-2: Exterior Engle Thm: The measure of each exterior angle of a triangle = the sum of the twp remote interior angles.

2-1:Day 2

Equilateral: All sides are congruent

Isosceles: At LEAST 2 sides are congruent.

Scalene: no sides are congruent.

Equiangular: all angles are congruent.

Acute: ALL angles are acute.

Right: ONE right angle.

Obtuse: ONE obtuse angle.

Problem 1-1

What is the definition for Thm 2-1?

Thm 2-1: Triangle-Angle Sum Theorem: The sum of the measures of the angles of a triangle is 180 degreees.

Thm 2-1: The measure of each exterior angle of a triangle = the sum of the twp remote interior angles.

None of the above

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