vocab
Adjacent Angles
two angles that lie in the same place and have a common vertex and a common side but have no common interior points.
Complementary Angles
Two or more angles that add up to 90 degrees
Face
A face of a polyhedron is a flat surface on the object.
Cone
A solid figure with a circular base connected by a curved surface to a single vertex
Prism
A polyhedron with two parallel congruent faces called bases, connected by parallelogram faces.
Vertical Angles
two non-adjacent angles formed by two intersecting lines. These angles are congruent.
Supplementary Angles
Two or more angles that add up to 180 degrees.
Edge
An edge of a polyhedron is a line segment where the faces intersect.
Sphere
A set of all points in space equidistant from a given point is called the center. This object has no sides, faces, edges, or vertices.
Volume
the measure of the amount of space enclosed by a three-dimensional figure.
Vertex
In a polyhedron, it is the intersection of three, edges of the polyhedron.
Plane
a flat surface made up of points that has no depth and extends indefinitely in all directions.
theorem
a statement that can be proven true using undefined terms, definitions, and postulates.
Axiom
A statement that is accepted as true without proof.
Directed Line Segment
has an initial endpoint and a terminal endpoint.
Betweenness of points
For any two points A and B on a line, there is another point C between A and B if and only if A, B, and C are collinear and AC + CB = AB. This relationship is called,