Angles
An angle that measures exactly to 90 degrees
Right Angle
Congruent
two lines that meet at a point.
Angle
a part of a line that has a single endpoint and extends infinitely in one direction
Ray
An angle that measures less than 90 degrees
Acute Angle
Two angles that measure up to 90 degrees
Complementary
a straight, one-dimensional figure with no thickness that extends infinitely in both directions
Line
The axes of a two-dimensional Cartesian system divide the plane into four infinite regions
Qudrants
An angle that measures above 90 degrees
Obtuse
what is it called when two points lie on the same plane
Colplanar
a fixed point from which coordinates are measured, as where axes intersect.
Origin
a part of a straight line that is bounded by two distinct endpoints
Segment
Two angles that measures to exactly to 180 degrees
Supplementary
points lying on the same line
Collinear
the point exactly in the middle of a line segment, dividing it into two equal parts
Midpoint
two lines that intersect at a single point, forming a right angle, which is exactly 90 degrees
Perpindicular
angles when each of the pairs of opposite angles made by two intersecting lines.
Vertical Angles
objects that are next to each other and share a common point, such as a vertex or a side
Adjacent
A flat, two-dimensional surface that extends infinitely in all directions. It has no thickness.
an angle that measures exactly 180 degrees
Straight angle
a point where two or more lines, rays, or edges meet, forming a corner
Vertex