Geometry Unit 6—Similar Triangles Vocabulary

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Across
  1. 4. A statement that declares two polygons are similar, listing corresponding vertices in the correct order (e.g., ΔABC ~ ΔDEF).
  2. 5. Polygons that have the same shape but not necessarily the same size. Their corresponding angles are congruent, and their corresponding side lengths are proportional.
  3. 9. A comparison of two quantities using division. It can be written as a/b, a:b, or "a to b".
  4. 10. If a line parallel to one side of a triangle intersects the other two sides, then it divides the two sides proportionally.
  5. 11. If a ray bisects an angle of a triangle, then it divides the opposite side into two segments that are proportional to the other two sides of the triangle.
Down
  1. 1. The ratio of corresponding linear measurements of two similar figures.
  2. 2. A comparison of three or more quantities, such as a:b:c.
  3. 3. The similarity theorem states that if an angle of one triangle is congruent to an angle of another triangle and the sides including these angles are proportional, then the triangles are similar.
  4. 4. The similarity theorem states that if the corresponding side lengths of two triangles are proportional, then the triangles are similar.
  5. 6. The similarity theorem states that if two angles of one triangle are congruent to two angles of another triangle, then the triangles are similar.
  6. 7. An equation that states two ratios are equal, for example, a/b = c/d.
  7. 8. Segments within similar figures or triangles that maintain a constant ratio to their corresponding parts.