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

What do you call an angle that measures exactly 90 degrees?

Back

Right angle.

Front

If one angle of a triangle measures 71 degrees and the other two angles are 62 degrees and 47 degrees, what is the measure of the third angle?

Back

The third angle measures 47 degrees.

Front

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

Back

Each angle in an equilateral triangle measures 60 degrees.

Front

What type of angle measures less than 90 degrees?

Back

Acute angle.

Front

What type of angle measures more than 90 degrees but less than 180 degrees?

Back

Obtuse angle.

Front

If a triangle has angles measuring 50 degrees and 60 degrees, what is the measure of the third angle?

Back

The third angle measures 70 degrees.

Front

What is the sum of the angles in a triangle?

Back

180 degrees.

Front

If one angle of a triangle is 90 degrees, what type of triangle is it?

Back

It is a right triangle.

Front

What is the relationship between the angles in a triangle?

Back

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