6.3 Similar Triangles Notes - Washington-Lee · 6.3 Similar Triangles Notes 2 6.3 Use Similar...
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6.3 Similar Triangles Notes 1 Warm up 1. The ratio of two complementary angles is 7:8. What is the measure of each angle? 2. Solve the proportion x =3 x+2 5 3. The ratio of the length to the width of a field is 10:3. If the perimeter is 2630m, find the dimensions of the field. 4. If the ratio AB:BC is 4:5, find BC A B C 24 3x3
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Transcript of 6.3 Similar Triangles Notes - Washington-Lee · 6.3 Similar Triangles Notes 2 6.3 Use Similar...
6.3 Similar Triangles Notes
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Warm up1. The ratio of two complementary angles is 7:8. What is the measure of each angle?
2. Solve the proportion x = 3 x+2 5
3. The ratio of the length to the width of a field is 10:3. If the perimeter is 2630m, find the dimensions of the field.
4. If the ratio AB:BC is 4:5, find BC A
B
C
24 3x3
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6.3 Use Similar Polygons
Objectives• Students will use proportions to identify similar polygons• Students will identify corresponding parts of similar polygons• Students will find and use scale factors of similar polygons• Students will explain how to solve proportion problems to eachother.
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Similar Polygons:
Corresponding Angles Corresponding Sides
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The ratio of perimeters is the same as the scale factor.
The ratio of the areas is equal to the scale factor squared.
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What is the scale factor?
What is the ratio of the perimeters?
What is the ratio of the areas?
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Classwork
6.3 Similar Triangles Notes
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