Triangles and Angles Retest

Which equation can be use to solve for X?

The Triangle Sum Theorem states that the sum of all angles in a triangle is ______.

• 45°

• 90°

• 180°

• 360°

What is the measure of angle b?

• 36^o
• 56^o
• 63^o
• 117^o

• A
• B
• C
• D

What is the measure of ∠2?

• 38
• 58
• 71
• 142

Find the value of x. 

• x = 133
• x = 47

If angle 2 is 86^o, what is the measure of angle 5?

• 86^o
• 94^o
• 194^o
• none of the above