Angles and Triangles Sum Exterior

What is the measure of angle b?

• 36^o

• 56^o

• 63^o

• 117^o

Find the measure of the indicated angle. 

• 145

• 113

• 102

• 78

Are the triangles similar?

• Yes

• No

In a triangle, how many total degrees are there?

• 100%

• 180 degrees

• it varies

• 360 degrees

Find the measure of the indicated angle. 

• 26

• 36

• 85

• 144

Are the triangles similar?

• Yes

• No

Which triangles are similar to triangle A?

• B

• C

• Both

• None

Which theorem can be used to justify that \angle1+\angle2=\angle4?

• Triangle Sum Theorem

• Alternate Interior Angles Postulate

• Vertical Angles Postulate

• Exterior Angles Theorem

Which theorem can be used to justify that \angle1+\angle2+\angle3=180?

• Triangle Sum Theorem

• Alternate Interior Angles Postulate

• Vertical Angles Postulate

• Exterior Angles Theorem

Which is true by the Exterior Angle Theorem?