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32 Cards in this Set
- Front
- Back
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Point
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Most fundamental object in geometry. It is represented by a dot and XXXXX by a capital letter. It has no size, no width and no height.
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Distance
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the space between two points
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Acute angle
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an angle with a measurement of degrees that totals less than 90 degrees.
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Ray
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Has only one end point, the other side extends indefinitely.
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Same-side interior angles
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Vertical angles
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Angles opposite each other when two lines cross
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Right angle
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An internal angle that is equal to 90 degrees
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Midpoint
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The center of the line
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Straight Angle
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Angle equal to 180 degrees
looks like |
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Transversal
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A line that intersects a system of lines. A line that cuts across two or more lines. Also perpendicular transversal.
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Congruent
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Two lines or angles, the same amount, (either number or degrees)
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Complementary angles
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Two angles that added together equal 90 degrees (i.e.40+50)
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Exterior angles
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the angle between a side of a rectilinear figure and another shape. An adjacent side extend outward.
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same-side exterior angles
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two angles that together equal 180 degrees
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angle
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the space between two intersecting lines or surfaces at or close to the point where they meet
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supplementary angles
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two angles that add up to exactly 180 degrees
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parallel lines
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two lines that stand together and extend infinitely in two lines and don't ever touch
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intersection
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two lines that cross each other or meet at a single point
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adjacent angles
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two angles that have a common side and a common vertex and do not overlap
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corresponding angles
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two lines are crossed by another line. The line it crosses on is called the transversal.
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segment
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a line ending
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vertex
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a corner, an edge joins one vertex with another. A pace and an individual surface.
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angle bisector
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a ray that divides an angle into 2 equal parts
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alternate-interior angles
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an angle that is paired with another angle on the inside, but on the opposite side of the transversal
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collinear
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a certain set of points are all on the same line
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degree
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a symbol, an amount of measurement, a full circle is equal to 360 degrees
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perimeter
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the total distance around the outside of a 2D shape
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interior angles
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an angle that is an angle inside another shape
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line
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extends indefinitely forward in 2 directions, has infinite length, no width, and no height. Is written on top of the numbers
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obtuse angle
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an angle that is equal to 90 degrees or more
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perpendicular lines
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two lines that connect each other at a right angle
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quadrilateral
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means 4 sides, a 4 sided shape, but the sides have to be straight, because it has to be 2 dimensional.
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