This video tutorial introduces the basic concepts of points, lines, and planes in geometry. It covers the definitions and properties of points, lines, and planes, including collinear and non-collinear points, coplanar and non-coplanar points, and how lines and planes intersect. The tutorial also explains rays, opposite rays, and line segments, providing foundational vocabulary and concepts necessary for understanding geometry.

What is a point in geometry?

• A location with no size or shape

• A plane with boundaries

• A location with size and shape

• A line with thickness

Tags

CCSS.HSG.CO.A.1

How is a line named in geometry?

• By a capital letter

• By any two points on the line or a lowercase script letter

• By a single point on the line

• By any three points on the line

Tags

CCSS.HSG.CO.A.1

What are collinear points?

• Points that lie on the same plane

• Points that do not lie on the same line

• Points that form a triangle

• Points that lie on the same line

Tags

CCSS.4.G.A.1

How is a plane defined in geometry?

• A flat surface made up of points that extends indefinitely in all directions

• A line with no thickness or width

• A point with no size or shape

• A segment with two endpoints

Tags

CCSS.HSG.CO.A.1

What makes a set of points non-coplanar?

• All points lie on the same plane

• At least one point does not lie on the same plane

• At least one point does not lie on the same line

• All points lie on the same line

What is the intersection of two lines?

• A point

• A segment

• A plane

• A ray

Tags

CCSS.HSG.CO.A.1

What is a ray in geometry?

• A plane with three points

• A segment with two endpoints

• A line that starts at an endpoint and goes off in a particular direction to infinity

• A line with two endpoints

Tags

CCSS.4.G.A.1

What are opposite rays?

• Two rays that start from a common point and go in the same direction

• Two rays that start from a common point and go in opposite directions

• Two rays that form a line segment

• Two rays that start from different points

Tags

CCSS.4.G.A.1

What is a line segment?

• A point with no size or shape

• A plane with three points

• A line that extends indefinitely in one direction

• A part of a line that is bounded by two distinct points

Tags

CCSS.HSG.CO.A.1

What is the process of showing a theorem to be correct called?

• Postulate

• Definition

• Proof

• Axiom