Angle Relationships & Triangle Sum Theorems

Front

If all three angles are exactly the same measure, how big is each angle?

Back

60 degrees

Front

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

Back

180°

Front

Find the measure of the angle indicated: 100 or 80?

Back

80

Front

What is the measure of angle b? Options: 36°, 56°, 63°, 117°

Back

36°

Front

To find the measure of an exterior angle, take the sum of the two _________________?

Back

nonadjacent angles

Front

What is the sum of the interior angles of a triangle?

Back

180 degrees

Front

What do you call an angle that measures more than 90 degrees but less than 180 degrees?

Back

Obtuse angle

Front

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

Back

60 degrees

Front

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

Back

They are supplementary (sum to 180 degrees).

Front

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

Back

Right triangle