Wize High School Geometry Textbook (Common Core) > Polygons
Similar Polygons

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Similar Polygons
Similar polygons are figures that have the same shape but different sizes.
How can we tell if two polygons are similar?
- Using angles: The corresponding angles (angles in the same relative positions) are all the same Example:

- Using side lengths: The corresponding sides (sides in the same relative positions) have the same proportions Example:

Practice: Similar Polygons
A swimming pool has a smaller quadrilateral in the center that does not hold water. Find the perimeter of the smaller center quadrilateral.
