Triangle Sum Theorem

Find the measure of the missing angle.

• 90^o
• 10⁰
• 130^o
• 50^o

Find the measure of each angle indicated.

• 50
• 20
• 29
• 48

Find the measure of the indicated angle.

Find the value of k.

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 79 and the 2nd angle is 43?

• 43
• 58
• 72
• 101

Find the measure of the indicated angle.

Solve for x.

• 7
• 9
• -11
• -8

Find the measure of the indicated angle.