Ch.1-6 Definitions
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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undefined terms | point, line,plane
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adjacent angles | nonoverlapping angles that share a vertex and side
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counterexample | an example that meets the definition but isn't what it's describing
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skew lines | non-coplanar lines that don't intersect
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vertical angles | non adjacent angles formed by intersecting lines
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polygon | a closed figure in a plane, connecting line segments endpt. to endpt., each segment intersects two others
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quad. | 4 sided polygon with atleast one pair of congruent sides
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undecagon | 11 sided polygon
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regular polygon | all angles and sides congruent
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right triangle | triangle with one right angle
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acute triangle | all angles are acute
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obtuse triangle | only one obtuse angle
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isc. triangle | atleast 2 congruent sides
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trapezoid | quadrilateral w/ exactly one pair of parallel lines
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isc. trapezoid | non parallel sides are congruent
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kite | quad with 2 pairs of consecutive congruent sides
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parallelogram | quad. with both pairs of sides parallel
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rhombus | pgram w/ all congruent sides
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rectangle | pgram w/ 4 right angles
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square | pgram w/ 4 right angles & all congruent sides
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circle | set of pts on a plane that have a radius & a center pt
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congruent circles | same radius
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concentric circles | circles that share the same center
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minor arc | arc smaller than a semicircle
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major arc | arc bigger than a semicircle
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geometry | a way to measure earth
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inductive reasoning | based on experience
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deductive reasoning | based on rules
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transversal | line that intersects parallel lines
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incenter | the pt of concurrency for angle bisectors of an triangle
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circumcenter | the pt. of concurrency for perpendicular bisectors of a triangle
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Centroid | center of gravity, pt. of concurrency for 3 medians
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arc length | distance from one endpoint of an arc to the other endpoint of the arc
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isometric | drawing that shows 3 sides of an object in one view
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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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