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GeoGebra
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Copy of Triangular Numbers
Author:
Edmond So
,
Gareth Daniels
Use the input box to choose a value for
n
.
GeoGebra
Try to work out a formula to find the number of red circles in the
n
th pattern.
GeoGebra
New Resources
History of Maths
Rotating Points (Optical Illusion)
Introduction
Slope of a Straight Line: Run and Rise
"Compressed" Astroid as Envelope
Discover Resources
The study of function with GeoGebra
Quadratic Graphs in Standard and Vertex Form
Surface Area of a Cube Using a Net
gold
quad 2
Discover Topics
Fractions
Addition
Reflection
Cone
Vectors 3D (Three-Dimensional)