Triangle Sum Theorem

Front

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

Back

180°

Front

If one angle of a triangle measures 70° and another measures 60°, what is the measure of the third angle?

Back

50°

Front

What is the measure of each angle in an equilateral triangle?

Back

60°

Front

In a right triangle, if one angle measures 90° and another measures 45°, what is the measure of the third angle?

Back

45°

Front

If a triangle has angles measuring 30°, 60°, and x°, what is the value of x?

Back

90°

Front

What is the relationship between the angles in a triangle?

Back

The sum of the angles in a triangle is always 180°.

Front

If two angles of a triangle are 80° and 50°, what is the measure of the third angle?

Back

50°

Front

In a triangle, if one angle is 90° and the other two angles are equal, what are the measures of the other two angles?

Back

45° each.

Front

What is the measure of the missing angle in a triangle if the other two angles are 110° and 30°?

Back

40°

Front

If a triangle has angles measuring 40°, 70°, and x°, what is the value of x?

Back

70°.