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Supplementary angles
Author:
Elizabeth Raskin
,
Yoong Kheong
Complementary and supplementary angles
GeoGebra
What do you notice? What is always, sometimes or never true about the angles?
New Resources
Odd Function Explorer
Pythagorean Theorem: Extension Exercises
Squaring a Rectangle (PST Version)
Linear Equation Graphs: Thin Slice
Pythagorean Template: Integer Legs
Discover Resources
Square roots of negative ℝeal numbers
Sum of exterior angles heptagon
時鐘（教師用）
Κατασκευή τετραγώνου ισοδύναμου με ορθογώνιο(geom-10)
Animated flower Ger by Md (Vlad Bargan)
Discover Topics
Linear Programming or Linear Optimization
Sphere
Surface
Kite
Polynomial Functions