Triangle Sum Class Practice

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

• 45°
• 90°
• 180°
• 360°

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

Find the measure of the missing angle.

• 30^o
• 110^o
• 150^o
• 40^o

Find the measure of the indicated angle. 

• 95
• 85
• 35
• 45

Solve for x.

• 16
• 11
• 50
• 6

Solve for x.

• 6
• -10
• 7
• -9

A triangle has one angle that measure 81° and one that measures 37°. What is the measure of the third angle?

• 62°

• 76°

• 118°

• 99°

_{What type of angle is shown?}

• a 90 degree angle
• a 180 degree angle
• an acute degree angle
• an obtuse angle

Solve for x.

• 5
• 12
• -7
• -6

Solve for x

• 28
• 12
• 10
• 2