Interior Angle Theorem Triangles

Front

What does the Triangle Sum Theorem state?

Back

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

Front

If two angles of a triangle are known, how can you find the third angle?

Back

You can find the third angle by subtracting the sum of the known angles from 180 degrees.

Front

What is the measure of the third angle in a triangle with angles of 45 degrees and 120 degrees?

Back

The third angle measures 15 degrees.

Front

In a triangle, if two angles measure 30 degrees and 70 degrees, what is the measure of the third angle?

Back

The third angle measures 80 degrees.

Front

What is the measure of an angle if the other two angles in the triangle are 45 degrees and 90 degrees?

Back

The measure of the angle is 45 degrees.

Front

What is the formula to calculate the sum of angles in a triangle?

Back

The sum of angles in a triangle is calculated using the formula: Angle1 + Angle2 + Angle3 = 180 degrees.

Front

How do you determine if a triangle is valid based on its angles?

Back

A triangle is valid if the sum of its angles equals 180 degrees.

Front

What is the measure of an angle in a triangle if the other two angles are 36 degrees and 54 degrees?

Back

The measure of the angle is 90 degrees.

Front

If one angle of a triangle is 60 degrees and another is 80 degrees, what is the third angle?

Back

The third angle measures 40 degrees.

Front

What is the relationship between the angles in a triangle?

Back

The angles in a triangle are related such that their sum is always 180 degrees.