Geo 3.1: Classifying Triangles and Properties of Triangles

Geo 3.1: Classifying Triangles and Properties of Triangles

Sum of the interior angles of a triangle

• The angles inside a triangle ALWAYS add up to be 180 degrees

• It does not matter what type of triangle it is, the angles always add up to be 180 degrees

Multiple Select

Select the TWO classifications for the triangle

• Isosceles

• Scalene

• Right

• Obtuse

• Acute

Multiple Select

Select the TWO classifications for the triangle

• Equilateral

• Scalene

• Isosceles

• Equiangular

• Obtuse

Multiple Choice

Find the measure of the missing angle.

• 139°

• 66°

• 138°

• 116°

Multiple Choice

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o

Multiple Choice

Find the measure of the missing angle.

• 47

• 57

• 53

• 133