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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
Converting Angle Measures Between Degrees and Radians
Dividing a 3-digit number by a 1-digit number (1)
Addition of Vectors Algeraically
bewijs stelling van Pythagoras
Set Operations (2 Sets)
Discover Resources
Draw Parallel Line II Summary
Snell's Law 2
Tilted Squares 2
polynomial
translacija
Discover Topics
Cone
Symmetry
Reflection
Parabola
Square