← 2.1 Similarity and Enlargement
Maps, models and inaccessible distances
Mathematics · Grade 10 · about 40 minutes
Read a map scale, and measure a tree or a river you cannot walk across, using similar triangles.
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- 11 sections of explanation, worked examples and diagrams
- 1 practice task with hints and worked answers
- A quiz that marks itself as you go
- Your progress kept across every subject you take
Other lessons in this sub-strand
- Similar figures and scale factor
- Enlargement
- Corresponding parts and AA similarity
- Missing lengths by proportion
- Nested triangles and parallel lines
- Scale factor in both directions
- Area scale factor
- Volume scale factor and models
- Enlargement not from the origin
- Negative scale factors on the grid
- Finding the centre of enlargement
- Maps, models and inaccessible distances