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Circle & Circumference

Author:spkwan

version 2

NCTM illuminations - Slope Pi and Lines

https://illuminations.nctm.org/uploadedFiles/Content/Lessons/Resources/9-12/PiLine-AS-Slope.pdf

version 1

Is there another way to 'roll' the circle on a straight line? How?

圓弧問題 1

圓弧問題 1
https://www.geogebra.org/m/bZ5wQ3JQ

圓弧問題 2

圓弧問題 2
https://www.geogebra.org/m/Rzx3X2Jb

GeoGebra Institute of Hong Kong - 圓周(學生版)

https://www.geogebra.org/m/wb5R89Wd

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