Classifying Triangles

An obtuse triangle has at least one angle that is bigger than ______ degrees.

• 90

• 45

• 180

Classify the triangle by angles and sides.

• Right Scalene

• Right Isosceles

• Acute Isosceles

• Right Obtuse

Classify the triangle by angles and sides.

• Right Scalene

• Equiangular Equilateral

• Obtuse Isosceles

• None of the above

Triangles can be classified by what two things?

• Side length

• Number of Vertices

• Angles

• Congruent Sides

Classify each triangle by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

Classify each triangle by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

Classify each triangle by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

Solve for x.

• 16

• 11

• 50

• 6

Find the measure of the angle indicated. 

• 139°

• 66°

• 138°

• 116°

Find the value of x

• 1

• 15

• 11

• 3