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GeoGebra
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Outline
Proofs on Parallel Lines
Vertical Angle Theorem
Two-column proof (Corresponding Angles)
Two-column Proof (Alt Int. Angles)
Same-side Interior Angles Postulate
Converse of Same Side Interior Angles Postulate
Prove Converse of Alternate Interior Angles Theorem
Converse of Corresponding Angles Theorem
Proving Lines Parallel #1
Proofs on Parallel Lines
Author:
Patricia Angela Santos
,
Jenny Secor
Topic:
Angles
Vertical Angle Theorem
Two-column proof (Corresponding Angles)
Two-column Proof (Alt Int. Angles)
Same-side Interior Angles Postulate
Converse of Same Side Interior Angles Postulate
Prove Converse of Alternate Interior Angles Theorem
Converse of Corresponding Angles Theorem
Proving Lines Parallel #1
Next
Vertical Angle Theorem
New Resources
Witch of Agnesi - A Classical Construction
Isosceles Triangle: Quick Construction
van Aubel's Theorem
Bottema's Theorem
Viviani's Window
Discover Resources
Perimeter & Area
Geometric Series: Proof without words 等比級數:無言證明
Investigation 1
hhjhhhhh
Angles in the Unit Circle
Discover Topics
Variance
Difference and Slope
Natural Numbers
Arithmetic Mean
Cosine