Sum of Angles Equal a Triangle

sum of two interior angle of a triangle is always equal to exterior angle

• true

• false

Find the indicated angle measure. (What is ?)

• 51°

• 37°

• 167°

• 41°

Find <S

• A

• B

• C

• D

Find the measure of the angle indicated. 

• 139°

• 66°

• 138°

• 116°

What is the third angle of a triangle whose 1st angle is 79 and the 2nd angle is 43?

• 43

• 58

• 72

• 101

Find the measure of the missing angle.

• 90^o

• 10⁰

• 130^o

• 50^o

Find the measure of the indicated angle. 

• 26

• 36

• 85

• 144

Find the indicated angle. (What is ?)

• 91°

• 81°

• 89°

• 109°

Solve for x

• 70

• 23

• 120

• 130

Solve for x

• 60

• 120

• 40

• 65