chapter 1 leson 1.1, 1.2,1.3
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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| conjecture | an unproven statement that is based on observation
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| point | a point has no dimension. it is usually represented by a small dot
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| line | is defined by 2 points; a line extends in one dimension; usually represented by a straight line with two arrow heads to indicate that the line extends without end in two directions
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| plane | is defined by 3 points; a plane extends in two dimensions; is usually represented by a shape that looks like a tabletop or a wall
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| line segment | part of a line that consists of two ponts called endpoints and all point on the line that are in between the endpoints; segment
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| ray | part of a line that consists of a point, called an initial point, and all points on the line that extend in one direction
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| postulate | rules that are accepted without proof; also called axioms
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| length of a segment | the distance between the end points of a segment
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| congruent segments | segments that have the same length
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| measure of an angle | consider a point A on one side of line OB. The rays of the from O,A can be matched one to one with the real numbers from 0 to 180. The measure of the angle AOB is equal to the absolute value of the difference between the real numbers for ray OA and ray OB
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| acute angle | an angle with measure between 0 and 90 degrees
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| right angle | angle with measure equal to 90 degrees
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| obtuse angle | an angle with measure between 90 and 180 degrees
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| straight angle | an angle wih measure equal to 180 degrees
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| segment bisector | a segment,ray line, or plane that intersects a segment at its midpoint
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| angle bisector | a ray that divides an angle in two adjacent angles that are congruent
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| vertical angles | two angles whose sides form two pairs of opposite ray
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| complementary angles | two angles whose measures have the sum 90 degrees
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| supplementary angles | two angles whose measures have the sum 180 degrees
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| congruent angles | angles that have the same measurement
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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.
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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:
softball1
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