Term | Definition |
point | has no size or shape, but it is often represented using a dot. It can be labeled using a capital letter . |
line | a straight, continuous arrangement of an infinite number of points that has an infinite length, but no width |
collinear points | points that are located on the same line |
plane | a flat surface, it has an infinite length and width, but no depth, and extends infinitely in all directions |
compass | a tool used to create arcs and circles |
straightedge | a ruler with no numbers |
sketch
the figure is created without the use of tools | the figure is created without the use of tools |
draw | the figure is created with the use of tools such as a ruler, straightedge, compass, or protractor |
construct | the figure is created using only a compass and a straightedge |
coplanar lines
two or more lines that are located in the same plane | two or more lines that are located in the same plane |
skew lines | two or more lines that do not intersect and are not parallel and do not lie in the same plane |
endpoint of a ray
the single point where the ray begins | the single point where the ray begins |
altitude | a line segment that is perpendicular to a side of the triangle and has one endpoint at the opposite vertex |
ray | part of a line that begins with a single point and extends infinitely in one direction |
midpoint | a point that is exactly halfway between two given points |
arc | a part of a circle that is the curve between two points on the circle |
angle | formed by two rays that share a common endpoint |