Triangle Angle Sum Theorem

Front

The angles inside an equilateral triangle are all ...

Back

60 degrees

Front

Find the measure of each angle indicated: 62, 53, 71, 50. What is the answer?

Back

71

Front

Find the measure of the indicated angle: 95, 85, 35, 45. What is the answer?

Back

45

Front

Find the measure of the missing angle: 90°, 10°, 130°, 50°. What is the answer?

Back

50°

Front

Find the measure of the missing angle: 30°, 110°, 150°, 40°. What is the answer?

Back

30°

Front

What is the Triangle Angle Sum Theorem?

Back

The sum of the angles in 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

They must add up to 90 degrees.

Front

In a triangle, if one angle measures 70 degrees and another measures 50 degrees, what is the measure of the third angle?

Back

60 degrees.

Front

What is the measure of each angle in a right triangle?

Back

One angle is 90 degrees, and the other two angles add up to 90 degrees.

Front

If a triangle has angles measuring 40 degrees and 60 degrees, what is the measure of the third angle?

Back

80 degrees.