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Similar Polygons Section 6-2
similar figures – when figures have the same shape but are different sizes The symbol ~ means is similar to.
Defn. of Similar Polygons Two polygons are similar iff if their corresponding angles are congruent and the measures of their corresponding sides are proportional.
scale factor - the ratio of 2 corresponding sides of 2 similar polygons The scale factor is 3:2 or 2:3. 3 2 3 2
dilation – a transformation that reduces or enlarges a figure.
Joke Time What means of transportation gives people a cold? A choo-choo train
What job do hippies do? They hold your leggies on.
By: THE “A” SQUAD (Annie and Andrew)
Concept: Use Similar Polygons
Honors Geometry Section 8.2 B Similar Polygons
Similar and Congruent Figures. Similar figures have the same shape, but not the same size. They must have the same ratio of side lengths Congruent figures.
I can identify corresponding angles and corresponding sides in triangles and prove that triangles are congruent based on CPCTC.
Section 8.3 Similar Polygons
Congruence and Similarity
6.4 Similar and Congruent Figures Similar Figures - t wo figures that have the same shape but not necessarily the same size We use this symbol to show.
Using Proportions to Solve Geometry Problems Section 6.3.
Section 11-3 Perimeters and Areas of Similar Figures.
Dilations Section 9.7. Dilation A dilation is a transformation that stretches or shrinks a figure to create a similar figure. A dilation is not an isometry.
Sketch and label two similar rectangles with a scale factor of one and different orientations. List the corresponding parts of the two rectangles. S T.
Solve the following proportions. a = 9 b = 7 c = 6 d = 6.
7.2 Similar Polygons Similar figures – have the same shape but not necessarily the same size. You can abbreviate is similar to with the symbol ~ . Two.
7-2 Similar Polygons Objective To identify and apply similar polygons.
Lesson 8-2: Similar Polygons Similar: “Same _______ – different ______” –Think of it is ______________________ A B C X Y Z Look for properties.
Geometry 6.3 Big Idea: Use Similar Polygons
Similar Polygons /Dilations
DEFINING SIMILARITY ~ADAPTED FROM WALCH EDUCATION.
11.3 Perimeters and Area of Similar Figures
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