Flashcard Angle Pairs

Front

What are vertical angles?

Back

Angles that are opposite of each other when lines intersect.

Front

Name a pair of vertical angles in the figure.

Back

∠1 and ∠4.

Front

What are supplementary angles?

Back

Angles that add up to 180°.

Front

What is the measure of angle A if it is given as 61°?

Back

61°.

Front

Solve for x if the equation is x + 10 = 44.

Back

34.

Front

What are adjacent angles?

Back

Angles that share a common side and vertex.

Front

What is the sum of angles in a triangle?

Back

180°.

Front

What are complementary angles?

Back

Angles that add up to 90°.

Front

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

Back

They are equal.

Front

What is the relationship between supplementary and complementary angles?

Back

Supplementary angles add up to 180°, while complementary angles add up to 90°.