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| subset of a line that contains two points of the line and all points between those two points |
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| subset of a line that contains the endpoint and all points on the line on one side of the point |
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| points that cannont be placed in a single plane |
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| lines that do not intersect, and there is no plane that contains them |
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| two coplanar lines with exactly one point in common |
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| lines that contain the same point |
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| two distinct coplanar lines that have no points in common |
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| the part of a plane on one side of an indefinitely extended straight line drawn in the plane |
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| formed when two rays share an endpoint |
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| common endpoint of two rays |
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| two angles that share a common vertex and a common side and do not have overlapping interiors |
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| the amount of "opening" between the sides of an angle |
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| a division of a degree. There are 60 of these in a degree. Denoted with "'" |
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| a division of a minute. There are 60 of these in a minute. Denoted with a """ |
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| an angle with a measure of less than 90 degrees |
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| an angle with a measure of exactly 90 degrees. |
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| an angle with a measure of greater than 90 degrees and less than 180 degrees |
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| an angle with a measure of exactly 180 degrees |
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| when two lines intersect so that the angles formed are right angles |
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| Line Perpendicular to a Plane |
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| a line that is perpendicular to every line in the plane through its intersection with the plane |
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| a curve that does not cross itself, except that if you draw it with a pencil, the starting and stopping points may be the same. |
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| can be drawn starting and stopping at the same point |
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| simple and closed and have sides that are only segments |
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| simple, closed, and have no indentations |
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| simple, closed, and has indentation |
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| the union of the interior of a polygon with some, all, or none of the polygon itself |
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| any two sides of a polygon have a common vertex |
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| determined by a side of the polygon and the extension of a contiguous side of the polygon |
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| any line segment connecting non-consecutive vertices of a polygon |
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| parts that are the same size and shape |
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| polygons which all the interior angles are congruent and all the sides are congruent |
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| triangle that contains one right angle |
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| triangle where all angles are acute |
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| triangle where one angle is obtuse |
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| triangle with no congruent sides |
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| triangle that contains at least two congruent sides |
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| triangle with three congruent sides |
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| a quadrilateral with at least one pair of parallel sides |
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| quadrilateral with two adjacent sides congruent and other two sides also congruent |
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| a trapezoid with exactly one pair of congruent sides (and thus two congruent base angles) |
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| a quadrilateral in which each pair of opposite sides is parallel |
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| a parallelogram with a right angle (a quadrilateral with 4 right angles) |
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| parallelogram with two adjacent sides congruent (a quadrilateral with all sides congruent) |
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| a rectangle with two adjacent sides congruent (a quadrilateral with 4 right angles and 4 congruent sides) |
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| two angles the sum of whose measures is 180 degrees |
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| two angles the sum of whose measures is 90 degrees |
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| any line that intersects a pair of lines |
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| set of all points at a given distance from a given point (the center) |
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| a simple closed surface made up of polygonal regions (or faces) |
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| How to Face and Edge and Vertex relate? (Euler) |
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| a polyhedron in which two congruent faces lie in parallel planes and other faces are bounded by parallelograms |
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| prism with lateral faces that are bounded by rectangles |
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| prism with some of its lateral faces not bounded by rectangles |
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| a polyhedron determined by a polygon and a point not in the plane of the polygon |
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| a pyramid with all its lateral faces being congruent isoceles triangles |
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| a pyramid with some of its lateral faces not being congruent isoceles triangles |
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| a polyhedron where the segment connecting any two points in the interior of the polyhedron is itself in the interior |
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| a polyhedron that has at least one segment connecting two points of the polyhedron that is in the exterior |
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| a convex polyhedron whose faces are congruent regular polygonal regions such that the number of edges that meet at each vertex is the same for all the vertices of the polyhedron |
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| Cube, Tetrahedron, Octahedron, Dodecahedron, Icosahedron |
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| cylinder iwth a base that is a circular region |
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| cylinder where the line segments forming the cylinder are perpendicular to the base |
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| cylinder where the line segments are not perpendicular to the base |
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| the union of line segments connecting point P to each point of a simple closed curve, the simple closed curve, and the interior of the curve |
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| a cone whose altitude intersects the base (a circlular region) at the center of the circle |
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| a cone whose altitude intersects the base (a circular region) at any point (other than the center) of the circle |
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