Geometry from the Land of the Incas 46/80

Geometry, Machu Picchu

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Recent Additions (Page 46 of 80)

Geometry Congruence - Index

Triangle, Squares, Areas

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

Rhombus

Rhombus. Index.

Problem: tangent circles

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

Right triangle: altitude

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

Hexagon Index

Hexagons.

Heptagon, Heptagrams

Heptagon and Heptagrams / Septegrams.

Heptagons

Heptagons.

Machu Picchu Fractal

Fractal Landscape of Machu Picchu.
Cuzco, Peru

Tangent circles

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

Right triangle

Circumcenter. Index.

Pi Day

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.

Right triangle: perpendicular

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

Right triangle: Altitude

Proposed Problem 268.
Right Triangle, Catheti and Altitude.

Right triangle: product of catheti

Proposed Problem 267.
Right Triangle, Product of Catheti.

 

Pythagoras theorem and Einstein

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

Pythagorean Theorem

Proposed Problem 265.
Right Triangle, Pythagorean Theorem.

Right triangle geometric mean

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

Median orthogonal projection

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

Regular Hexagon problem

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

Regular pentagon

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

Peru Fossil

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

Orthocenter

Orthocenter Index.

Centroid

Centroid /Barycenter. Index.

Pentagons - Index

Pentagons. Index.

Equilateral triangle

Equilateral Triangles Index.

Equilateral triangle

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

Equilateral triangle

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

Equilateral triangle

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

Equilateral triangle

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

Equilateral triangle

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

Triangle centroid

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

Triangle centroid

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

Triangle centroid

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

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