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Pins and string
Author:
Malin Christersson
To answer a Tumblr question: Curve drawn by using three pins and a string. The curve is piecewise defined by six elliptical arcs. Move the dots to see another shape!
GeoGebra
New Resources
Cube of a Binomial - Volume Model
Droste effect
aperiodic monotile construction_step by step
Rings of circles
Roman Numerals Bingo
Discover Resources
Het spiegelbeeld tekenen van een vijfhoek
Chadwick_Linear Pair
Multiples of 3
worksheet
การลบจำนวนเต็ม
Discover Topics
Rhombus
Cosine
Addition
Special Points
Quadrilaterals