Calculating Angles in a Triangle

What is the sum of the angles in a triangle?

• 180

• 360

• 90

• 270

If one angle in a triangle is 45 degrees and another angle is 60 degrees, what is the measure of the third angle?

• 135

• 75

• 120

• 90

If two angles in a triangle are 30 degrees and 60 degrees, what is the measure of the third angle?

• 45

• 120

• 90

• 180

If one angle in a triangle is 90 degrees and another angle is 45 degrees, what is the measure of the third angle?

• 45

• 90

• 30

• 60

If two angles in a triangle are 60 degrees and 75 degrees, what is the measure of the third angle?

• 120

• 90

• 45

• 30

If one angle in a triangle is 120 degrees and another angle is 30 degrees, what is the measure of the third angle?

• 60

• 45

• 90

• 30

If two angles in a triangle are 45 degrees and 75 degrees, what is the measure of the third angle?

• 30

• 60

• 90

• 120

If one angle in a triangle is 60 degrees and another angle is 90 degrees, what is the measure of the third angle?

• 45

• 30

• 120

• 75

If two angles in a triangle are 30 degrees and 45 degrees, what is the measure of the third angle?

• 60

• 75

• 105

• 90

If one angle in a triangle is 135 degrees and another angle is 15 degrees, what is the measure of the third angle?

• 60

• 45

• 30

• 90