C.a.R. > Applications> Similarity and Angles

Similarity and Angles

Chord Angle

• Quadrilateral of Chords
• Chord Angle Theorem
• Chord Angle and Midpoint Angle
• Chord Theorem
• Chord Tangent Theorem

The Golden Ration

• Basic Idea
• Golden Ratio as a Format
• DIN Format
• Construction of the Golden Ration
• A Spiral

Reflection at a Circle

• Construction of the Reflection at a Circle

Applications

• Proof of the Pythagoras Theorem
• Construction of Reciprocals
• Construction of Fibonacci Numbers
• The Nautilus Logo

Trisection

• Apollonius Trisection
• Trisection by Folding
• Approximation of a Trisection
• Trisection by Iteration

C.a.R. > Applications > Similarity and Angles