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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
Construcing a 60° Angle and Properties of 30°-60°-90° Triangles
Comparing Two Quantities by Percentage
Construcing a 30° Angle and Properties of Rhombi
Untitled
Constructing the Angle Bisector + Practice
Discover Resources
GCDjs7
EXPO 2015
Perpendicular Bisector Proof
Properties of Squares
Hexagon from 5 Circles
Discover Topics
Vectors
Rotation
Coordinates
Planes
Arithmetic