Review congruent angles & sides

Front

What are congruent angles?

Back

Angles that have the same measure.

Front

What is the sum of the angles in a triangle?

Back

180 degrees.

Front

If two angles are vertical angles, what can be said about their measures?

Back

They are equal.

Front

How do you find the measure of the third angle in a triangle if two angles are known?

Back

Subtract the sum of the two known angles from 180 degrees.

Front

What is the relationship between corresponding angles when two parallel lines are cut by a transversal?

Back

Corresponding angles are congruent.

Front

What is the measure of an angle that is supplementary to a 75° angle?

Back

105° (because 180° - 75° = 105°).

Front

If m∠A = 45° and m∠B = 45°, what can be said about triangle ABC?

Back

Triangle ABC is an isosceles triangle.

Front

What is the definition of complementary angles?

Back

Two angles whose measures add up to 90 degrees.

Front

If m∠1 = 30°, what is the measure of m∠2 if m∠1 and m∠2 are supplementary?

Back

150° (because 180° - 30° = 150°).

Front

What is the relationship between alternate interior angles when two parallel lines are cut by a transversal?

Back

Alternate interior angles are congruent.