Points, Lines, and Planes Vocabulary 1

Front

What is a flat, 2-dimensional surface usually represented by a shape that looks like a floor or a wall?

Back

plane

Front

What is the term that matches the symbol for a straight path that extends infinitely in both directions?

Back

line

Front

How many points are needed to determine a plane?

Back

three noncollinear points

Front

What is the minimum number of points required to define a plane, and what is their arrangement?

Back

3, noncollinear

Front

How would you describe points I, L, C if they lie on the same flat surface?

Back

coplanar

Front

What is a straight path that has a starting point but no endpoint?

Back

ray

Front

What is a part of a line that has two endpoints?

Back

line segment

Front

What is the term for two lines that never intersect?

Back

parallel lines

Front

What is the term for a point that lies on the same line as two other points?

Back

collinear points

Front

What is the term for points that do not lie on the same plane?

Back

non-coplanar points