


Perpendicular Lines, Theorems
and Problems  Table of Content (19)




Proposed Problem 112. Area of
square and triangle.
Perpendicular lines. 

The Pythagorean Curiosity
Triangles and squares, fifteen conclusions.
Perpendicular lines,
Parallel lines.


Triangle
and Squares Theorem 1: with Interactive Geometry Software
StepbyStep construction, Manipulation, and animation.
Perpendicular lines, Parallel
lines. 

Proposed Problem 91. Similar
Triangles, Altitude, Perpendicular
lines, Parallel lines. 

Taylor Circle Theorem Using TracenPoche Dynamic Software
StepbyStep construction, Manipulation, and animation,
Perpendicular lines.
Henry Martyn Taylor and the blind student of mathematics


Proposed Problem 78: Angles of a Circle.
Perpendicular and parallel lines, Midpoint, Diameter, Chord, Cyclic
quadrilateral, Congruence.


Proposed
Problem 76: Area of a Circle.
Square, Circle, Circular Sector,
Perpendicular lines.


Interactive Orthopole of
a Triangle: Using TracenPoche Dynamic
Geometry Software, Online
StepbyStep construction, manipulation, and animation,
Perpendicular lines. 

Proposed Problem 70: Squares inscribed in a triangle, Similarity.
Perpendicular lines, Parallel
lines.


Proposed Problem 69: Square inscribed in a triangle, Similarity.
Perpendicular lines, Parallel
lines.

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