4th Grade Geometry

Front

What is a ray in geometry?

Back

A ray is a part of a line that has one endpoint and extends infinitely in one direction.

Front

What does 'regular' mean in geometry?

Back

In geometry, 'regular' means that all sides and all angles of a shape are equal.

Front

What is an angle?

Back

An angle is formed by two rays that share a common endpoint, called the vertex.

Front

What is a line segment?

Back

A line segment is a part of a line that has two endpoints.

Front

What is a point in geometry?

Back

A point is a specific location in space that has no size or dimension.

Front

What type of angle is less than 90 degrees?

Back

An acute angle.

Front

What type of angle is exactly 90 degrees?

Back

A right angle.

Front

What type of angle is greater than 90 degrees but less than 180 degrees?

Back

An obtuse angle.

Front

What is a straight angle?

Back

A straight angle is an angle that measures exactly 180 degrees.

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.