Triangle Properties

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

Find the measure of the indicated angle. Hint: Triangles add up to 180°

Find the value of k.

Solve for x.

Find the indicated angle measure. (What is ?)

Solve for x.

In a triangle, how many total degrees are there?

• 100%
• 180 degrees
• it varies
• 360 degrees

Find the measure of the indicated angle. 

• 95
• 35
• 45

Find the measure of the angle indicated. 

• 139°
• 66°
• 138°

Find the measure of the missing angle.

• 10⁰
• 130^o
• 50^o