Section 8.3 Similar Polygons

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Presentation transcript:

Section 8.3 Similar Polygons Chapter 8 Similarity Section 8.3 Similar Polygons

Definition Similar Polygons Trapezoid ~ Trapezoid

Corresponding components must line up in the similarity statement

Corresponding components must line up in the similarity statement

Corresponding components must line up in the similarity statement

Definition: Scale Factor The ratio of any two corresponding sides of similar polygons. Same no matter what two sides are chosen

Scale Factor =

Scale Factor 5

The Perimeter Ratio is the same as the scale factor Theorem The Perimeter Ratio is the same as the scale factor Scale Factor = Perimeter Ratio

Ratio of the perimeters = the ratio of the sides The perimeter of ABC =