Sum of Interior Triangles

Solve for x.

• 16

• 11

• 50

• 6

What is the value of x?

• 15

• 9

• 12

• 11

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

• 45°

• 90°

• 180°

• 360°

Find the measure of each angle indicated. 

• 140°

• 21°

• 105°

• 25°

What is the sum of the three interior angles in a triangle?

• 180⁰

• 360⁰

• 90⁰

• 60⁰

The interior angles in a triangle have a sum of...

• 100%

• 180 degrees

• it varies

• 360 degrees

What do the interior angles in a triangle have a sum of?

• 180

• 90

• 360

• 270

The interior angles of a triangle always add to what?

• 180 degrees

• 90 degrees

• 360 degrees

• 45 degrees

All interior angles of a triangle add up to:

• 150^o

• 360^o

• 180^o

• 90^o

The interior angles of a triangle always sum to…

• 133

• 180

• 197

• 360