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Khan Academy (English - US curriculum)
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Khan Academy (English - US curriculum)
Math by grade
Illustrative Mathematics
8th grade (Illustrative Mathematics)
Unit 2: Dilations, similarity, and introducing slope
Unit 2: Dilations, similarity, and introducing slope
Lesson 4: Dilations on a square grid
Lesson 6: Similarity
Lesson 7: Similar polygons
Extra practice: Dilations
Lesson 9: Side lengths quotients in similar triangles
Lesson 10: Meet slope