Triangle angle sum theorem

Front

What is the Triangle Angle Sum Theorem?

Back

The Triangle Angle 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 50 degrees and another is 60 degrees, what is the measure of the third angle?

Back

70 degrees.

Front

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

Back

Each angle measures 60 degrees.

Front

How do you find the measure of an unknown angle in a triangle?

Back

Subtract the sum of the known angles from 180 degrees.

Front

If a triangle has angles measuring 34 degrees and 101 degrees, what is the third angle?

Back

45 degrees.

Front

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

Back

One angle measures 90 degrees, and the sum of the other two angles is 90 degrees.

Front

In a triangle, if one angle is 90 degrees and another is 45 degrees, what is the third angle?

Back

45 degrees.

Front

What is the measure of the angles in a triangle with angles of 22 degrees and 25 degrees?

Back

The third angle measures 133 degrees.

Front

If the angles of a triangle are in the ratio 2:3:4, what are the measures of the angles?

Back

The angles measure 40 degrees, 60 degrees, and 80 degrees.

Front

What is the sum of the angles in any triangle?

Back

180 degrees.