CAI Geometry Vocab 1
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Acute | angle that has a measure of less than 90 degrees
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| Area | the measurement if square units of the interior region of a 2-dimensional figure
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| Right | angle that has a measure of exactly 90 degrees
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| Obtuse | angle that has a measure of more than 90 degrees
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| Adjacent | two angles that lie in the same plane, have a common vertex and a common side, but not common interior points.
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| Bisector | something that splits an object in 2 equal parts
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| Distance | the length of a segment between two points
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| Circumference | the distance around the outside of a circle calculated by 2πr or πd
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| Collinear | on the same line
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| Coplanar | on the same plane
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| Complementary | two angles that add to 90 degrees
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| Congruent | same size, same shape
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| Construction | To draw a shape, line or angle accurately using a compass and straightedge
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| Isometric Drawing | Way to draw a 3D figure where all objects and lengths the same size will be drawn the same size whatever their position.
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| Linear pair | two adjacent angles that form a straight line
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| Net | a 2-d pattern that can be folded to form a solid 3-d
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| Midpoint | Midpoint-the point on a segment exactly halfway between the endpoints of the segment
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| Orthographic Drawing | two-dimensional drawing of a three-dimensional object, using two or more additional drawings to show additional views of the object
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| Perpendicular | intersecting to form right angles
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| point | a defined position in space
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| line | is made up of points, it has no thickness or width
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| perimeter | the distance around a two-dimensional shape
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| plane | flat surface made up of points that has no depth and extends indefinitely
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| postulate/axiom | A statement, also known as an axiom, which is taken to be true without proof. That are the basic structure from which theorems are derived
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| ray | a part of a line that begins at a point and continues without end in one direction
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| segment | a measureable part of a line that consists of two points, called endpoints, and all of the points between them
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| supplementary | two angles with measures that have a sum of 180o
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| vertex | the corner of a plane polygon or of a prism
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| vertical angles | 2 nonadjacent angles formed by 2 intersecting lines
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| angle | the opening that is formed when two lines, line segments, or rays intersect
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
abankes
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