Undefined term
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A straightforward figure that is not defined in state of various other figures.

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CollinearPoints the lie on the very same line.
PlaneA level surface that has no thickness and also extends forever.
LineA straight route that has actually no thickness and extends forever.
PointA place that has no size.
CoplanarPoints that lie in the same plane.
EndpointA point at an end of a segment or the starting point of a ray.
RayA component of a line that starts in ~ an endpoint and extends forever in one direction.
PostulateA statement the is welcomed as true without proof, likewise called an axiom.
VertexThe common endpoint the the sides of an angle.
Opposite raysTwo beam that have actually a usual endpoint and type a line.
SegmentA part of a line consisting of 2 endpoints and all points between them.
DistanceThe absolute worth of the distinction of the collaborates of two points.
ConstructionA technique of developing a number that is taken into consideration to it is in mathematically precise.
BetweenGiven 3 points A, B, and C, B is in between A and also C if and only if all three of the clues lie top top the very same line, and abdominal + BC = AC.
Coordinate planeA airplane that is divided into 4 regions by a horizontal line dubbed the x-axis and a vertical line dubbed the y-axis.
CoordinateA number used to determine the ar of a point.
Congruent segmentsTwo segment that have actually the exact same length.
DegreeA unit of edge measure.
MidpointThe allude that divides a segment into two congruent segments.
BisectTo divide into two congruent parts.
AngleA number formed by two rays through a usual endpoint.
MeasureThe use of systems to find a dimension or quantity.
Segment bisectorA line, ray, or segment the divides a segment into two congruent segments.
Vertical anglesThe nonadjacent angles developed by two intersecting lines.
Straight angleAn angle created by 2 opposite rays that steps 180°.
Acute angleAn angle that measures greater than 0° and also less 보다 90°.
Right angleAn angle that procedures 90°.
Interior of an angleThe collection of all points in between the sides of one angle.
Obtuse angleAn angle that measures better than 90° and less than 180°.
Exterior of an angleThe set of every points outside an angle.
Adjacent anglesTwo angles in the same aircraft with a usual vertex and a typical side, yet no usual interior points.
Complementary anglesTwo angles whose measures have a sum of 90°.
Supplementary anglesTwo angle whose measures have a sum of 180°.
Angle bisectorA beam that divides one angle right into two congruent angles.
Linear pairA pair of surrounding angles whose noncommon sides space opposite rays.
Congruent anglesAngles that have the exact same measure.
ImageA shape that outcomes from a change of a figure.
PreimageThe original number in a transformation.
ReflectionA transformation across a line.
TransformationA readjust in the position, size, or shape of a figure.
RotationA revolution about a point P, such that each allude and its image are the same distance native P.
TranslationA revolution in which all the point out of a figure move the same distance in the same direction.
legOne that the 2 sides of the best triangle that kind the appropriate angle.
AreaThe number of nonoverlapping unit squares that a provided size the will specifically cover the internal of a aircraft figure.
HypotenuseThe next opposite the ideal angle in a right triangle.
LengthThe distance between the two endpoints of a segment.
baseAny side of a triangle.
HeightAsegment indigenous a crest that forms a right angle with a heat containing the base.
RadiusA segment who endpoints space the center of a circle and also a allude on the circle, or the distance from the facility of a circle to any suggest on the circle.
PerimeterThe sum of the next lengths the a closed airplane figure.
piThe ratio of the circumference of a circle to its diameter, denoted through the Greek letter π.
CircumferenceThe distance approximately the circle.

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DiameterA segment the passes v the facility of a circle and whose endpoints are on the circle, or the length of together a segment.
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