Geometry Review

Front

What is a line in geometry?

Back

A straight one-dimensional figure that has no thickness and extends infinitely in both directions.

Front

What is a ray?

Back

A part of a line that starts at a point and extends infinitely in one direction.

Front

What is a line segment?

Back

A part of a line that is bounded by two distinct endpoints.

Front

What are complementary angles?

Back

Two angles that add up to 90 degrees.

Front

What are supplementary angles?

Back

Two angles that add up to 180 degrees.

Front

What is the symbol for a ray?

Back

A ray is represented by a line with an endpoint and an arrow indicating the direction, e.g., @@ ightarrow{AB}@@.

Front

If m∠1 = 30°, what is m∠3 if they are equal?

Back

m∠3 = 30°.

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.

Front

What is an angle?

Back

An angle is formed by two rays with a common endpoint called the vertex.

Front

What is a right angle?

Back

An angle that measures exactly 90 degrees.