Geometry from the Land of the Incas 46/80


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Recent Additions (Page 46 of 80)




Proposed Problem 273.
Triangle, Perpendiculars, Area of Squares.


Rhombus. Index.


Proposed Problem 271.
Tangent Circles, the Cube of the Common external tangent.


Proposed Problem 266.
Right Triangle, Altitude, Geometric Mean.


Hexagons.


Heptagon and Heptagrams / Septegrams.


Heptagons.


Fractal Landscape of Machu Picchu.
Cuzco, Peru


Proposed Problem 270.
Tangent Circles, Common external tangent, Fractional exponents.


Circumcenter. Index.


Pi Day.
Saturday, March 14, 2009 = 3.14
It's time to get irrational. Tomorrow is Pi Day, when mathematicians
will gather to celebrate the mystery of science's most famous strange
number.


Proposed Problem 269.
Right Triangle, Altitude, Perpendicular, Projection.


Proposed Problem 268.
Right Triangle, Catheti and Altitude.


Proposed Problem 267.
Right Triangle, Product of Catheti.


Albert Einstein and the Pythagorean theorem.
A preteen Albert Einstein devised a new proof of the Pythagorean
theorem.


Proposed Problem 265.
Right Triangle, Pythagorean Theorem.


Proposed Problem 264.
Right Triangle, Altitude, Leg projection, Hypotenuse, Similarity,
Geometric mean.


Proposed Problem 263.
Triangle, Median, Altitude, Orthogonal Projection, Sides.


Proposed Problem 262.
Regular Hexagon inscribed in a circle, sum of distances.


Proposed Problem 261.
Regular Pentagon inscribed in a circle, sum of distances.


Fossil skull of giant toothy seabird found in Ocucaje, Ica, Peru,
February 27, 2009.


Orthocenter Index.


Centroid /Barycenter. Index.


Pentagons. Index.


Equilateral Triangles Index.


Proposed Problem 260.
Equilateral Triangle, Incircle, Tangency Points, Vertices, Distances,
Squares.


Proposed Problem 259.
Equilateral Triangle, Incircle, Tangency Points, Side, Distances,
Squares.


Proposed Problem 258.
Equilateral Triangle, Circumcircle, Point, Vertices, Side, Distances,
Squares.


Proposed Problem 257.
Equilateral Triangle, Circumcircle, Point, Vertices, Side, Distances,
Squares.


Proposed Problem 256.
Equilateral Triangle, Circumcircle, Point, Vertices, Distances.


Proposed Problem 255.
Triangle, Centroid, Vertices, a Point, Distances, Squares.


Proposed Problem 254.
Triangle, Centroid, Vertices, a Point, Distances, Squares.


Proposed Problem 253.
Triangle, Centroid, Vertices, Distances, Squares.

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