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Congruence and Similarity

Related Topics:
More Lessons for High School Regents Exam
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High School Math based on the topics required for the Regents Exam conducted by NYSED. Learn to identify whether figures are congruent, similar, or neither

Geometry definition for Congruent:
Two shapes are congruent if they have the same shape and the same size.

Geometry definition for Similar:
Two shapes are similar if they have the same shape, but not necessarily the same size.

The following diagrams gives the conditions for similar triangles. Scroll down the page for more examples and solutions.

Conditions for Similar Triangles

Similar, Congruent, or Neither
Example:
Determine if the following solid shapes are similar, congruent, or neither. If similar, find the scale factor from the left figure to the right.



Investigate Congruent Triangles
Investigate Similar Triangles


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