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Similarity
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1. Compare pictures, similar or non-similar
- Are they similar? (1)
- Are they similar? (2)
- Are they similar? (3)
- Are they similar? (4)
- Are they similar? (5)
- Are they similar? (6)
- Are they similar? (7)
- direction on map
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2. Study dilation
- tracing image of dilation
- dilation and similar triangles
- dilate and rotate
- a series of similar triangles
- radiation
- Pantograph with GeoGebra
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3. Combination of similar triangles
- Template for arranging two similar triangles
- make 2 similar triangles (1)
- make 2 similar triangles (2)
- make two overlapping triangles similar
- Find 2 similar triangles
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4. Other comparisons
- Rectilinear Figures
- side splitting quadrilateral
- compare shapes
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Similarity
Arthur Lee, Apr 26, 2014
Similar Figures and Similarity Transformation See my notes at https://www.evernote.com/shard/s3/sh/b1c1756d-11c5-45ca-9db7-48aad626271d/215da887c05f1534e5c49219b1538d06 or resources in a Padlet wall ( http://padlet.com/msalee/similar )
Table of Contents
- Compare pictures, similar or non-similar
- Are they similar? (1)
- Are they similar? (2)
- Are they similar? (3)
- Are they similar? (4)
- Are they similar? (5)
- Are they similar? (6)
- Are they similar? (7)
- direction on map
- Study dilation
- tracing image of dilation
- dilation and similar triangles
- dilate and rotate
- a series of similar triangles
- radiation
- Pantograph with GeoGebra
- Combination of similar triangles
- Template for arranging two similar triangles
- make 2 similar triangles (1)
- make 2 similar triangles (2)
- make two overlapping triangles similar
- Find 2 similar triangles
- Other comparisons
- Rectilinear Figures
- side splitting quadrilateral
- compare shapes
Are they similar? (1)
Are these pictures similar?
The length and width of the rectangular pictures can be independently adjusted.
Make similar or non-similar pictures.
The individual scaling factors can be shown and its relation to similarity can be examined.
tracing image of dilation
Drag B to make a sketch. You can right click each point to turn off tracing. Estimate how big the image is when tracing is off.
tracing image of dilation
Template for arranging two similar triangles
Two similar triangles
Template for arranging two similar triangles
Rectilinear Figures
Rectilinear figures that have equal corresponding angles but not proportional corresponding sides.
Rectilinear Figures
see http://aleph0.clarku.edu/~djoyce/java/elements/bookVI/defVI1.html
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