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11.3 Perimeters and Area of Similar Figures

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11.3 Perimeters and Area of Similar Figures

Similar Polygons

Similar polygons have all the Angles congruent and the Sides have the same ratios. (like these three houses)

If two polygons are similar (equal angles and corresponding sides in ratios), then the perimeters ratio is the same as the scale factor.

Perimeters are 24:16

same ratio as 3:2 for the sides

If two polygons are similar (equal angles and corresponding sides in ratios), then the Area ratio is the same as the scale factor squared. (in the regular hexagons)

The given figures are similar

How would you find the area?

The given figures are similar

The given figures are similar

The given figures are similar