triangle sum

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

• 45°
• 90°
• 180°
• 360°

_{What type of angle is shown?}

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

What do the angles in an equilateral triangle measure?

• 30, 60, 90
• 45, 45, 90
• 60, 60, 60
• 35, 55, 90

Find the measure of the missing angle.

• 47

• 57

• 53

• 133

What is the measure of the missing angle?

• 82
• 43
• 55
• 180

Solve for x.

• 5
• 12
• -7
• -6

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

Angles that are exactly 90 degrees are called _____ ______.

• tight angles
• acute angles
• obtuse angles
• right angles

Find the measure of each angle indicated. 

• 139°
• 66°
• 138°
• 116°

Find the measure of each angle indicated. 

• 40°
• 33°
• 30°
• 29°