Angle Sum of Triangles

Front

What is the Angle Sum Property of a Triangle?

Back

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

Front

If two angles of a triangle are 50° and 60°, what is the measure of the third angle?

Back

70°

Front

Can a triangle have angles measuring 90°, 45°, and 45°?

Back

Yes, because 90° + 45° + 45° = 180°.

Front

What is the measure of the missing angle if one angle is 90° and another is 30°?

Back

60°

Front

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

Back

120°

Front

What is the measure of the third angle if two angles are 34° and 38°?

Back

108°

Front

Are the angles 30°, 60°, and 90° valid for a triangle?

Back

Yes, they add up to 180°.

Front

What is the measure of the missing angle if the angles are 82°, 43°, and x°?

Back

55°

Front

If one angle of a triangle is 50° and the other is 50°, what is the third angle?

Back

80°

Front

What is the relationship between the angles of a triangle and a straight line?

Back

The angles of a triangle sum to 180°, which is the same as a straight line.