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ProportioNiall
Author:
John Golden
Enlarge - or shrink - the picture. But keep it proportional!
GeoGebra
New Resources
Art and Rotational Symmetry
Roman Numerals Bingo
Graphing Logarithmic Functions
Rings of circles
Road Runner (beep, beep)
Discover Resources
protractor-tool-applied
adrien sqrt
Tafel plot
Pizza Cutting
Can you fit it?
Discover Topics
Trigonometry
Circle
Quadratic Functions
Sequences and Series
Isosceles Triangles