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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| Alternate Interior Angles Theorem (Alt. Int.) | If two parallel lines are cut by a transversal, then each pair of alternate interior angles are congruent
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| Acute Angle | An angle with measure less than 90 degrees
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| Triangle Sum Theorem | The sum of the interior angles of a triangle is 180 degrees
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| Vertical Angles | Angles formed by two crossing lines and have equal measure, they are across from each other
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| Exterior Angle | Angle outside the triangle and have measure equal to the two remote interior angles of the triangle
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| Centroid | A point of concurrency inside the triangle where the three medians meet and is the balancing point of the triangle
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| Median | A line segment that has one end point at the midpoint of a triangle side and connects to the opposite vertex
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| Midsegment | A segment that forms when connecting the two midpoints of two sides of a triangle and has equal measure to 1/2 the parallel side
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| Isosceles Triangle | A triangle with two sides congruent
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| Congruent | Equal shape and size - used to describe geometric figures and concepts (like the word 'equal' is used in regular math)
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| Opposite | Means 'Across from' in math class
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| Adjacent | Means 'Next to'
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| Equilateral triangle | A triangle with all sides and angles congruent
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| CPCTC | Corresponding Parts of Congruent Triangles are Congruent
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| SAS | If two sides and an included angle of one triangle are congruent to two sides and an included angle of another triangle, then the two triangle are congruent
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| SSS | IF the sides of one triangle are congruent to the sides of a second triangle, then the triangles are congruent
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| ASA | If two angles and the included side of one triangle are congruent to the two angles and included side of another triangle, then the two triangles are congruent
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| AAS | If two angles and the non-included side of one triangle are congruent to the two angles and non-included side of another triangle, then the two triangles are congruent
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| Naming Angles | Used when identifying an angle, the vertex comes in the middle between the two endpoints
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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.
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Created by:
martha.kelley
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