Vertically Opposite angle

Author:Andy

Vertically Opposite angles, locate angle Alpha, find its associated angle Beta, Investigate their relationship, Investigate the measure of vertically opposite angles

New Resources

Constructing the Perpendicular Line Through a Point on the Line
bewijs stelling van Pythagoras
探究長方形對角線上的正方形數目
Example of using color palette
centripetal force

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Positions on the Number Line by Fractions and Decimals
Absolute Value Functions Artwork
Sanchez_Andrea.ggb
Circumcenter & Circumcircle Action!

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Mode
Planes
Reflection
Logic
Boxplot