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Outline
triangle
five squares
triangle midpoint theorem
the triangle inequality
the lunes of Alhazen
the lune of Hippocrates
the angle bisector theorems
classifying triangles...
triangles...
triangle angle-sum theorem
square roots in a greek way...
pythagorean theorem (a puzzle)
area of a triangle
a triangle
archimedes' arbelos
areas of similar triangles
pythagorean theorem (proof)
equilateral triangle (SAS)
measuring van gogh's cypress
the outer Napoleon triangle
reflections of a triangle
sierpinski triangles
triangle-1
right triangle trigonometry-1
simson line
nine-point circle
angle bisector as locus
incircle and excircles of a triangle
an archimedes' formula
axis of symmetry
find the tan(φ)
equal chords
an isosceles triangle...
cuboid
an equilateral triangle
sum of the interior angles of a n-gon
a Reuleaux triangle
congruent triangles
minimum area (line)
maximum area (angle)
area of an equilateral triangle
generalization (pappus) of pythagorean
ratio of areas-1
ratio of areas-2
an apollonian circle
law of sines (proof)
law of cosines (proof)
Johnson's theorem
Koch snowflake
construction of a triangle (sss)
miquel's triangle theorem
proof of pythagorean-5
angle trisection
first brocard point
nagel point
gergonne point
morley's triangle
distance between point-line
vivianni's theorem
chords and tangents
the famous "1/7" triangle
triangles...
congruent triangles
right triangle trigonometry
right triangle trigonometry-2
chord theorem
area of a triangle (sas)
area of a triangle-2
a square in a square
lemoine point
exeter point
vecten points
feuerbach's point
isosceles triangle paradox
properties of the altitudes
find the area-1
triangular numbers
Solving Similar Triangles (1)
Water Triangle
conway circle
the height of the pyramid
triangle
Author:
sonom
five squares
triangle midpoint theorem
the triangle inequality
the lunes of Alhazen
the lune of Hippocrates
the angle bisector theorems
classifying triangles...
triangles...
triangle angle-sum theorem
square roots in a greek way...
pythagorean theorem (a puzzle)
area of a triangle
a triangle
archimedes' arbelos
areas of similar triangles
pythagorean theorem (proof)
equilateral triangle (SAS)
measuring van gogh's cypress
the outer Napoleon triangle
reflections of a triangle
sierpinski triangles
triangle-1
right triangle trigonometry-1
simson line
nine-point circle
angle bisector as locus
incircle and excircles of a triangle
an archimedes' formula
axis of symmetry
find the tan(φ)
equal chords
an isosceles triangle...
cuboid
an equilateral triangle
sum of the interior angles of a n-gon
a Reuleaux triangle
congruent triangles
minimum area (line)
maximum area (angle)
area of an equilateral triangle
generalization (pappus) of pythagorean
ratio of areas-1
ratio of areas-2
an apollonian circle
law of sines (proof)
law of cosines (proof)
Johnson's theorem
Koch snowflake
construction of a triangle (sss)
miquel's triangle theorem
proof of pythagorean-5
angle trisection
first brocard point
nagel point
gergonne point
morley's triangle
distance between point-line
vivianni's theorem
chords and tangents
the famous "1/7" triangle
triangles...
congruent triangles
right triangle trigonometry
right triangle trigonometry-2
chord theorem
area of a triangle (sas)
area of a triangle-2
a square in a square
lemoine point
exeter point
vecten points
feuerbach's point
isosceles triangle paradox
properties of the altitudes
find the area-1
triangular numbers
Solving Similar Triangles (1)
Water Triangle
conway circle
the height of the pyramid
Next
five squares
New Resources
Pythagoras fractal tree: Step 3
Hyperbola Equation
Trammel of Archimedes
רישום חופשי
Cup Modeling Project (V2): Building Surfaces of Revolution
Discover Resources
מרובע לעבודה בכיתה
Translation C
test
Pyramide : soustraction de nombres relatifs
Tracing the Elliptic Paraboloid with Parabolas
Discover Topics
Line Segment
Bar Chart or Bar Graph
Set Theory
Normal Distribution
Similarity Transformation or Similarity
