math 9
unit 7.3 - similar polygons
what we need to know
- Scale factor = New length / Original length
- To get the dimensions of a scaled figure, multiply all side lengths of the original by the scale factor
- Proportional Ratios
- Concept of proportionality
- Definition of polygons
- To get the dimensions of a scaled figure, multiply all side lengths of the original by the scale factor
- Proportional Ratios
- Concept of proportionality
- Definition of polygons
class notes
9_unit_7.3_class_notes.compressed.pdf | |
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more information
scale factor
Similarity between figures
Steps to finding the Scale factor of given Similar figures
using the scale factor to determine if two figures are similar
example problems
using known corresponding sides to find s.f. and all other lengths - example
videos that may help
video 1
video 2
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video 3
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video 4
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video 5
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interactive online activities
worksheets
9_unit_7.3_wk_1.pdf | |
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9_unit_7.3_wk_2.pdf | |
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9_unit_7.3_wk_3pdf | |
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9_unit_7.3_wk_4.pdf | |
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