TODAY IN GEOMETRY…  WARM UP: SRF and Rationalizing the Denominator  Learning Target: 6.3 Use properties of similar polygons to solve proportions.  Independent.

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Concept: Use Similar Polygons

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Presentation transcript:

TODAY IN GEOMETRY…  WARM UP: SRF and Rationalizing the Denominator  Learning Target: 6.3 Use properties of similar polygons to solve proportions.  Independent Practice  Ch.6 Quiz – NEXT WEEK!

SIMILAR POLYGONS: two polygons that have congruent corresponding angles and side lengths are proportional.

SCALE FACTOR: the ratio of the lengths of two corresponding sides of two similar polygons. Check that the ratios of the corresponding side lengths are equal.

EXAMPLE: Determine whether the polygons are similar. If they are, write a similarity statement and find the scale factor.

PRACTICE: Determine whether the polygons are similar. If they are, write a similarity statement, find the scale factor and solve for x.

PRACTICE: The scale factor of Figure 1 to Figure 2 is 7:10. Complete the table. A A B B CC D D E E 1 2

HOMEWORK #3: Pg. 376: 3-12, 33 If finished, work on other assignments: HW #1: Pg. 360: even HW #2: Pg. 367: 3-12, 16-18