Classifying Triangles and Angle Sum

Find the measure of the indicated angle. 

• 87 degrees

• 82 degrees

• 83 degrees

• 72 degrees

Tags

CCSS.8.G.A.5

Find the measure of the indicated angle. 

• 145 degrees

• 24 degrees

• 20 degrees 

• 21 degrees

Tags

CCSS.7.G.B.5

Find the value of x by using the exterior angle theorem.

• A

• B

• C

• D

Tags

CCSS.8.G.A.5

• A
• B
• C
• D

Tags

CCSS.4.G.A.2

• A
• B
• C
• D

Tags

CCSS.HSG.SRT.D.10

CCSS.HSG.SRT.D.11

Which could be a set of measurements for an obtuse triangle

• 90, 40, 50

• 60, 60, 60

• 110, 30, 40

• 50, 85, 45

Tags

CCSS.8.G.A.5

Q1. What is the sum of 20 and 30?

• 40

• 50

• 90

• 35

Tags

CCSS.7.G.B.5

A triangular piece of wood has sides that are 9 inches, 15 inches, 7 inches long. Which of the following best describes this triangle?

• Equilateral

• Scalene

• Isosceles

• Obtuse

Tags

CCSS.4.G.A.2

Classify the following triangle in as many ways as possible. 

• Isosceles, Acute

• Isosceles, Obtuse

• Scalene, Obtuse

• Equilateral, Acute

Tags

CCSS.4.G.A.2

Find the measure of angle A.

• 44^o

• 96^o

• -14^o

• 63^o

Tags

CCSS.8.G.A.5