Triangle Sum Theorem

Front

What is the Triangle Sum Theorem?

Back

The Triangle Sum Theorem states that the sum of the interior angles of a triangle is always 180 degrees.

Front

If one angle of a triangle is 90 degrees, what can you say about the other two angles?

Back

The other two angles must add up to 90 degrees, since the total must equal 180 degrees.

Front

What is the measure of the third angle if two angles of a triangle measure 45 degrees each?

Back

The third angle measures 90 degrees (45 + 45 + 90 = 180).

Front

Find the missing angle if one angle is 50 degrees and another is 60 degrees.

Back

The missing angle is 70 degrees (50 + 60 + 70 = 180).

Front

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

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

If two angles of a triangle are 34 degrees and 38 degrees, what is the third angle?

Back

The third angle is 108 degrees (34 + 38 + 108 = 180).

Front

What is the sum of the angles in a triangle?

Back

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

Front

If one angle of a triangle is 92 degrees, what is the maximum possible measure of the other two angles?

Back

The maximum possible measure of the other two angles is 88 degrees (92 + 88 = 180).

Front

In a triangle, if one angle measures 36 degrees, what is the sum of the other two angles?

Back

The sum of the other two angles is 144 degrees (180 - 36 = 144).

Front

What is the relationship between the angles in a right triangle?

Back

In a right triangle, one angle is 90 degrees, and the sum of the other two angles is 90 degrees.