10.3 pt2 Triangles Exterior Angles

10.3 Exterior Angles of a Triangle

​Learning Target:
I can use an equation to find the measure of an exterior angle of a triangle.

Math Response

Type answer here

Correct Answer: y=20x

Deg^°

Rad

Multiple Choice

• A

• B

• C

• D

Math Response

Do not round your answer.

Type answer here

Correct Answer: 28.75

Deg^°

Rad

Angle Relationships in Triangles

Holt Geometry

Holt McDougal Geometry

The interior is the set of all points inside the
figure. The exterior is the set of all points
outside the figure.

Interior

Exterior

​Find the missing angle?

​Find the missing angle?

​Find the value of x?

​Find the value of x?

​Find the value of x?

​Find the value of x?

Multiple Choice

What is the measure of $$\angle4$$  in the triangle shown?

• $$22\degree$$  

• $$148\degree$$  

• $$32\degree$$  

• $$117\degree$$  

Multiple Choice

What is the measure of $$\angle4$$  in the triangle shown?

• $$161\degree$$  

• $$19\degree$$  

• $$109\degree$$  

• $$90\degree$$  

Multiple Choice

What is the measure of $$\angle2$$  in the triangle shown?

• $$70\degree$$  

• $$40\degree$$  

• $$210\degree$$  

• $$20\degree$$  

Multiple Choice

What is the measure of angle A in the triangle?

• 116°

• 25°

• 62°

• 54°

Multiple Choice

Find the value of x.

• A
• B
• C
• D

End of the Lesson