Geometry-Chapter 4 Vocabulary
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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| a polygon with three sides | triangle
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| a triangle with no congruent sides | scalene triangle
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| a triangle with at least two congruent sides | isosceles triangle
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| a triangle with three congruent sides | equilateral triangle
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| a triangle with all three internal angles measuring between 0 and 90 degrees | acute angle
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| a triangle with one internal angle measuring 90 degrees | right triangle
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| a triangle with one internal angle with measuring between 90 and 180 degrees | obtuse triangle
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| a triangle with three conguent angles | equiangular triangle
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| when the sides of a triangle are extended, the angles that are adjacent to the interior angles | exterior angles
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| when the sides of a triangle are extended, the three original angles of the triangle | interior angles
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| a statement that can be proved easily using a theorem | corollary
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| two geometric figures that have exactly the same size and shape | congruent figures
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| A pair of sides or angles that have the same relative position in two congruent or similar figures | corresponding parts
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| a type of proof that uses arrows to show the flow of a logical argument | flow proof
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| an operation that moves or changes a geomeric figure in some way to produce a new figure | transformation
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| In a right triangle, the side opposite the right angle | hypotenuse
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| In a right triangle, the sides adjacent to the right angle | legs
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| The two congruent sides of an isosceles triangle | legs
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| The noncongruent side of an isosceles triangle | base
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| The two angles that are adjacent to the base of an isosceles triangle | base angles
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| A transformation that uses a line of reflection to create a mirror image of the original figure | reflection
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| A transformation in which a figure is turned about a fixed pont called the center of rotation | rotation
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| A transformation that moves every point of a figure the same distance in the same direction | translation
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| In a transformation the term often used to refer to the original figure | preimage
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| The new figure that is produced in a transformation | image
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| A congruent transformation where all side lengths and angle measurements a remain the same | isometry
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| The angle opposite the base side of an isosceles triangle. | vertex angle
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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.
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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:
aelohaus
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