Undefined term
A straightforward figure the is not identified in state of other figures.

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CollinearPoints the lie ~ above the exact same line.
PlaneA level surface that has actually no thickness and extends forever.
LineA straight path that has no thickness and also extends forever.
PointA location that has no size.
CoplanarPoints that lie in the exact same plane.
EndpointA point at an finish of a segment or the starting point that a ray.
RayA component of a line that starts in ~ an endpoint and extends forever in one direction.
PostulateA statement the is embraced as true there is no proof, likewise called one axiom.
VertexThe usual endpoint that the political parties of an angle.
Opposite raysTwo beam that have a usual endpoint and type a line.
SegmentA part of a line consisting of 2 endpoints and all points in between them.
DistanceThe absolute worth of the difference of the coordinates of two points.
ConstructionA technique of creating a number that is taken into consideration to be mathematically precise.
BetweenGiven three points A, B, and C, B is between A and C if and only if all three of the points lie on the same line, and abdominal + BC = AC.
Coordinate planeA plane that is divided into four regions by a horizontal line dubbed the x-axis and a vertical line referred to as the y-axis.
CoordinateA number used to identify the ar of a point.
Congruent segmentsTwo segment that have actually the very same length.
DegreeA unit of edge measure.
MidpointThe suggest that divides a segment right into two congruent segments.
BisectTo divide right into two congruent parts.
AngleA figure formed by 2 rays v a typical endpoint.
MeasureThe usage of devices to find a dimension or quantity.
Segment bisectorA line, ray, or segment that divides a segment right into two congruent segments.
Vertical anglesThe nonadjacent angles developed by 2 intersecting lines.
Straight angleAn angle developed by 2 opposite rays that measures 180°.
Acute angleAn angle the measures better than 0° and less than 90°.
Right angleAn angle that procedures 90°.
Interior of one angleThe set of every points in between the sides of an angle.
Obtuse angleAn angle the measures better than 90° and also less 보다 180°.
Exterior of an angleThe collection of every points external an angle.
Adjacent anglesTwo angles in the same plane with a typical vertex and a usual side, yet no typical interior points.
Complementary anglesTwo angle whose measures have actually a amount of 90°.
Supplementary anglesTwo angle whose measures have a sum of 180°.
Angle bisectorA ray that divides an angle right into two congruent angles.
Linear pairA pair of nearby angles who noncommon sides room opposite rays.
Congruent anglesAngles that have actually the same measure.
ImageA form that outcomes from a change of a figure.
PreimageThe original number in a transformation.
ReflectionA transformation across a line.
TransformationA change in the position, size, or shape of a figure.
RotationA change about a allude P, such that each suggest and its image are the exact same distance native P.
TranslationA change in which all the clues of a number move the same distance in the very same direction.
legOne the the 2 sides that the appropriate triangle that kind the best angle.
AreaThe variety of nonoverlapping unit squares that a provided size the will specifically cover the interior of a airplane figure.
HypotenuseThe side opposite the ideal angle in a ideal triangle.
LengthThe distance in between the 2 endpoints the a segment.
baseAny side of a triangle.
HeightAsegment from a crest that forms a right angle through a heat containing the base.
RadiusA segment whose endpoints room the center of a circle and also a suggest on the circle, or the street from the facility of a circle to any point on the circle.
PerimeterThe amount of the side lengths that a closed plane figure.
piThe ratio of the one of a circle come its diameter, denoted by the Greek letter π.
CircumferenceThe distance around the circle.

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DiameterA segment that passes through the facility of a circle and whose endpoints room on the circle, or the size of such a segment.