Unit 4 Vocab
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| angle | The union of two rays with a common endpoint
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| ray | A part of a line consisting of an endpoint and all points on one side of that endpoint
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| complementary angles | Two angles that have a sum of 90 degrees
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| supplementary angles | Two angles that have a sum of 180 degrees
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| congruent | Having the same shape and size
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| transversal | A line that intersects two or more lines at different points
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| alternate exterior angles | Angles that are outside the parallels and on opposite sides of the transversal
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| alternate interior angles | Angles that are inside the parallels and on opposite sides of the transversal
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| corresponding angles | Angles that are in the same (relative) spot
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| vertical angles | A pair of angles formed by two intersecting lines
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| exterior angle of a triangle | The angle formed by extending a side of a triangle
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| remote interior angle | The nonadjacent angles across from an exterior angle of a triangle
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| transformation | A change in the position or size of a figure on a plane
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| preimage | The original image in a transformation
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| image | The position of a figure after a transformation
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| translation | A transformation that slides each point of a figure the same distance in the same direction
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| reflection | A transformation in which a figure is flipped over a line of reflection
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| rotation | A transformation in which each point of the pre-image turns around the center of rotation
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| similar figures | Figures in which the lengths of the corresponding sides are proportional and corresponding angles are congruent
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| proportion | An equation stating that two ratios are equal
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| scale factor | The ratio of the lengths of any pair of corresponding sides or edges in similar figures
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| dilation | Transforming a figure bigger or smaller
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| hypotenuse | The side of a right triangle that is opposite the right angle
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| legs | In a right triangle, the sides that form the right angle
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| Pythagorean Theorem | a^2 + b^2 = c^2
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| surface area | The sum of the areas of the faces of a 3d figure
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| lateral area | The sum of the areas of the lateral (side) face of a 3d figure
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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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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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