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14 Cards in this Set
- Front
- Back
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Ratio |
a comparison of 2 or more quantities |
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extended ratios |
a comparison of 3 or more quantities |
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proportion |
an equation that states two ratios are equal |
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Similar Polygons |
polygons with the same shape but different size |
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cross product property |
cross multiplying fractions to see if they are equal |
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Angle Angle Similarity |
If two corresponding angles are congruent, then the triangles are similar. |
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side side side similarity |
if all corresponding sides are proportional, then the triangles are similar |
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side angle side similarity |
if two corresponding sides are proportional and the included angles are congruent, then the triangles are similar |
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Triangle proportionality theorem |
If a line is parallel to one side of a triangle and intersects the other two sides, then it divides the sides into segments of proportional lengths. |
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Median |
A segment joining a vertex to the midpoint of the opposite side |
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Altitude |
a segment joining a vertex to the opposite side so that it is perpendicular to that side |
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Scale Factor |
The ratio of any two corresponding lengths in two similar polygons |
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Similarity Statement |
stating that two polygons are similar with a ~ symbol, must match corresponding angles inside |
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Angle Bisectors |
A line, segment, or ray, that divides an angles into two equal parts. |
