Classify Triangles, Sides of Triangles, Triangle Sum, Exterior Angles

• 23

• 47

• 37

• 27

• 44

• 54

• 31

• 64

Classify the triangle being described by angles and sides:

1 right angle & 2 congruent sides

• Equiangular Equilateral

• Obtuse Isosceles

• Right Scalene

• Right Isosceles

Classify the triangle by angles and sides:

type like this: Angles name Sides name

Find x. (Show your work)

x = __

Find x. (Show your work)

x = __

Find the missing angle.

? = ___

True or False: Equilateral triangles can only equiangular because all angles and sides are congruent.

• False; 2 angles and all sides are congruent.

• False; 2 angles and 2 sides are congruent

• True

• False; no angles or sides are congruent.

In triangle ABC angle A=65, angle C=57. What is the measure of angle B?

• 50

• 122

• 58

• 180

The Triangle Sum Theorem states that the sum of the measures of the interior angles of a triangle is ____.