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A point is a location in space.
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| A line ex[image]tends indefinitely in a single dimension. |
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| A line segment is a connec[image]ted piece of a line. |
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| A ray is starting at 1 point and going infinitely in one [image]direction |
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| A plane is an undefined term; extends without ending; no thickness; need at least 3 non collinear points to draw [image]a plane |
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| Opposite Rays (forms a line) must have connecting end [image]point |
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| Collinear are points on[image] the same line |
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| Coplanar are points on the same plane[image] |
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An Angle is a figure formed by two rays that have a common end point
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A Midpoint is a point that divides the segment into two ≈ segments
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A Bisector is a line that crosses at the midpoint
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Congruent is the same size and shape
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An Acute angle is less than 90º
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An Obtuse angle greater than 90º
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A Right angle is 90º
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A Straight angle equals 180º
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A Complementary angle is 2 angles that add up to 90 degrees.
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A Supplementary angle is 2 angles that add up to 180 degrees
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A Vertical angle each of the pairs of opposite angles made by two intersecting lines
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Adjacent Angles are angles that have a common ray coming out of the vertex going between two other rays.
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A Linear pair are two supplementary adjacent angles formed by two intersecting lines
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Perpendicular lines are two lines or planes (or a line and a plane), are considered perpendicular (or orthogonal) to each other if they form congruent adjacent angles (a T-shape). The term may be used as a noun or adjective. ...
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A Polygon is a plane figure with at least three straight sides and angles, and typically five or more
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A Triangle is a figure formed by 3 segments joining 3 non collinear points
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A Quadrilateral is a 4 sided figure
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A Pentagon is a 5 sided figure
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A Hexagon is a 6 sided figure
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| A Octagon is a 8 sided figure[image] |
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A decagon is a 10 sided figure
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A Dodecagon is a 12 sided figure.
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A N-gon is a figure with 13 or more sides
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Cocave is a diagonal contains points outside the polygon
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Convex is a polygon such that NO line containing a side of the polygon contains a point in the interior of the polygon OR a polygon is convex if NO diagonal contains points outside the polygon
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A Regular polygon is a polygon that is equiangular and equilateral
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An Irregular polygon is a plane figure that is bounded by a closed path or circuit, composed of a finite sequence of straight line segments
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Diagonal is a segment joining 2 non consecutive vertices
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A Side is the part of the figure that makes it up
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A Perimeter is the outside length of the object.
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