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GeoGebra
Regular Octagon with apothem
Author:
dnicolaus
New Resources
Unit 3 Constructions - Copy an Angle
Unit 3 Constructions - Perpendicular Line Through a Point
Unit 3 Constructions - Parallel Line Through a Point
AROC and IROC
Unit 3 Constructions - Copy an Segment
Discover Resources
练习（点，斜率，直线）
unit circle
Ian Dittman
Orthocenter (Sarah)
lampka_ostrosłup1
Discover Topics
Addition
Volume
Straight Lines
Means
Histogram