Geometric Logic and Spatial Reasoning · Geometry
The Logic of Similarity
Using scale factors and proportions to analyze similar triangles and polygons.
Key Questions
- 1Why do equal angles ensure that the sides of two triangles are proportional?
- 2How can we use similarity to measure objects that are physically inaccessible?
- 3What happens to the area of a shape when its dimensions are doubled?
Ontario Curriculum Expectations
ON: Geometry and Measurement - Grade 9
Grade: Grade 9
Subject: Mathematics
Unit: Geometric Logic and Spatial Reasoning
Period: Geometry
Suggested Methodologies
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