Classifying Triangles, Triangle Sum, Exterior Angle Theorem

Triangles can be classified by what two things?

• Side length

• Number of Vertices

• Angles

• Congruent Sides

Tags

CCSS.4.G.A.2

A triangle with 3 congruent sides is called a(n) ______

• Isosceles Triangle

• Equilateral Triangle

• Obtuse Triangle

• Irregular Triangle

Tags

CCSS.4.G.A.2

A scalene triangle has _____

• 3 different angle names

• no congruent sides

• all sides congruent

• 3 congruent angles

Tags

CCSS.4.G.A.2

The angles of all triangles add up to _______

• 270 degrees

• 160 degrees

• 180 degrees

• 90 degrees

Tags

CCSS.8.G.A.5

Classify each triangle by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

Tags

CCSS.4.G.A.2

Classify each triangle by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

Tags

CCSS.4.G.A.2

Classify each triangle by its angles and sides.

• Acute, Isosceles

• Obtuse, Isosceles

• Right, Scalene

• Equiangular, Equilateral,

• Acute, Scalene

Tags

CCSS.4.G.A.2

Solve for x.

• 16
• 11
• 50
• 6

Tags

CCSS.8.G.A.5

Find the measure of the angle indicated. 

• 139°
• 66°
• 138°
• 116°

Tags

CCSS.8.G.A.5

Which two angles are the remote interior angles to Angle W?

• Angle X and Angle Y

• Angle X and Angle Z

• Angle Y and Angle Z

• Angle Z and Angle W

Tags

CCSS.8.G.A.5