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Vertical Angles
Author:
Shaun Errichiello
What do you notice about the blue and purple angle?
GeoGebra
Play around with the slide bar. What do you notice about the blue and purple angles?
New Resources
Trophy (version 2)
Constructing an Isosceles Triangle with Given Side + Activities
Snake year !
Tube moving at distance of a curve.
Proving Triangles Congruent (2): One Step Transformations
Discover Resources
Calculations of Pyth's Theorem 1 (畢氏定理的計算 1)
Section 5.4 Lee
Domain and Range
Suri spinning spiral
Moving Dots
Discover Topics
Integral Calculus
Piecewise Functions
Natural Numbers
Tangent Function
Geometric Distribution