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Lesson Plan

Illustrative Mathematics: G Co, G Srt Seven Circles I

Curated by ACT

In this task, seven pennies are placed in a circle so that they are all touching one in the center and their neighbors. The question is whether this will work with other equally-sized circles. Aligns with G-SRT.C and G-CO.C.10.

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CCSS: Designed
Concepts
equilateral triangles, circles, triangles
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Additional Tags
theorems about triangles, cc by-nc-sa 4.0, ccss.math, creative commons attribution-noncommercial-sharealike 4.0, g-co.c.10, g-srt.c, hsg-co.c.10, illustrative mathematics, illustrative mathematics: g-co, g-srt seven circles i hsg-co.c.10, seven circles i
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Classroom Considerations
  • Knovation Readability Score: 5 (1 low difficulty, 5 high difficulty)
  • The intended use for this resource is Instructional|practice
Common Core
HSG-CO.C.10