Internal Angles of Triangles

In a triangle, how many total degrees are there?

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

Find the measure of the indicated angle. 

• 95
• 85
• 35
• 45

Find the measure of the indicated angle. 

• 26
• 36
• 85
• 144

Find the measure of angle D.

• 140 degrees
• 16 degrees
• 40 degrees
• 90 degrees

Find the missing angle.

• 29° 
• 39° 
• 49° 
• 59° 

If two of the angles of a triangle are 30 and 70 degrees, the third angle measures...

• 80
• 100
• 60
• 90

What is the measure of the unlabeled angle of the triangle?

• 90*
• 82*
• 98*
• 75*

Find the measure of angle x.

• 138
• 96
• 93
• 87

Find the missing angle.

• 29° 
• 39° 
• 49° 
• 59° 

Solve for x.

• 5
• 12
• -7
• -6