Geometry Unit 1
a segment bisector.
A line, line segment, or ray that intersects a line segment at its midpoint
Two angles in which the sum of their measures is 90∘ are ______ angles.
Complementary
_______ Geometry is based on the postulates of Euclid.
Euclidean
geometry
a branch of mathematics that deals with the study of geometric figures
line segment
a portion of a line consisting of two points and all the points between them
What is a postulate/axiom?
a rule that is accepted without proof
line
a straight path that has no thickness and extends forever
Two angles that share a common vertex and one common side but have no common interior points are ______ angles.
adjacent
An ______ is a figure formed by two rays with a common endpoint.
angle
A ray that bisects an angle into two congruent angles is an _______.
angle bisector
A method of creating a geometric figure that is mathematically precise by using a compass and straightedge is called _____.
construction
A number that corresponds to a point is an ______
coordinate
A plane that is divided into four regions by a horizontal line (x-axis) and a vertical line (y-axis) is called a ______.
coordinate plane
A point is a location in space that has neither size nor _____.
dimension
The set of points outside an angle is the _______ of the angle.
exterior
The set of points between the two sides of an angle is the _____ of the angle.
interior
A ___ consists of two endpoints and all the points in between them.
line segment
A set of coordinates that indicates the location of a point on a coordinate plane is a _______.
ordered pair
coplanar points
points that lie on the same plane
Plane geometry deals with _______ objects.
two-dimensional
The _____ is the common endpoint of the rays of an angle.
vertex
Two nonadjacent angles formed by two intersecting lines are _______ angles.
vertical
origin
The point of intersection of the x-axis and the y-axis on a coordinate plane
Whats solid geometry?
Geometry that deals with three-dimensional geometry
A ___ is a flat surface that has no thickness and extends forever.
Plane
What are collinear points?
Points that lie on the same line
A ___ is a part of a line that has one endpoint and extends in only direction forever.
Ray
The four regions into which a coordinate plane are divided are called _____.
quadrants
An endpoint is at both ends of a line _____ or at the start of a ray.
segment
Congruent means having the same_____ and ______ .
size;shape
A line is a _____ path that has no thickness and extends forever.
straight
Two angles in which the sum of their measures is 180∘ _____ angles
supplementary
endpoint
the point at either end of a line segment or the point at the start of a ray
