Geometry Vocabulary (Sem 1 Review)

Front

What is an obtuse angle?

Back

An obtuse angle is an angle that measures more than 90 degrees but less than 180 degrees.

Front

What are vertical angles?

Back

Congruent angles formed opposite each other by the intersection of two lines.

Front

What is an acute angle?

Back

An acute angle is an angle that measures less than 90 degrees.

Front

What is a line?

Back

A line is a straight path that extends infinitely in both directions.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.

Front

What is a straight angle?

Back

An angle that measures exactly 180 degrees.

Front

What is a complementary angle?

Back

Two angles that add up to 90 degrees.

Front

What is a supplementary angle?

Back

Two angles that add up to 180 degrees.

Front

What is a transversal?

Back

A line that intersects two or more lines at different points.

Front

What are corresponding angles?

Back

Angles that are in the same position on different parallel lines cut by a transversal.