Triangle Sum Theorem

Angles that are exactly 90 degrees are called _____ ______.

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

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

• 45°
• 90°
• 180°
• 360°

What is the third angle of a triangle whose 1st angle is 34 and 2nd angle is 101?

• 32
• 39
• 45
• 54

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

Find the measure of the indicated angle. 

• 95
• 85
• 35
• 45

Find the measure of each angle indicated.

• 62
• 53
• 71
• 50

Find the measure of each angle indicated.

• 50
• 20
• 29
• 48

Find the measure of each angle indicated.

• 50
• 55
• 60
• 70

Will the following three angles for a triangle?

30°, 60°, 90°

• yes

• no

A triangle has one angle that measure 45° and one that measures 60°. What is the measure of the third angle?

• 135°

• 75°

• 120°

• 105°