Geometry from the Land of the Incas 2/80


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Recent Additions (Page 2 of 80)




Circle Word Cloud, Mobile Apps.


Geometry Problem 1297. Arbelos, Semicircles, Diameters, Circle, Incircle, Tangent, Angle Bisector.


van Aubel's theorem. Quadrilateral with Squares. Proof with animation for Tablets, iPad


Geometry Problem 1296. Heron's Formula, Area of a triangle in terms of the three medians.


Geometry Problem 1295. Right Triangle, Incenter, Incircle, Excenter, Excircle, Congruence, Angle.


Geometry Problem 1294. Triangle, Altitudes, Four Squares, Center, Midpoint, Concyclic Points.


Geometry Problem 1293. Triangle, Altitudes, Two Squares, Center, Concurrent Lines, Midpoint.


Clifford's Circle Chain Theorems. This is a step by step
presentation of the first theorem. Clifford discovered, in the ordinary
Euclidean plane, a "sequence or chain of theorems" of increasing
complexity, each building on the last in a natural progression.


Geometry in the Real World, Los Angeles, California.


Geometry Problem 1292. Square, Circle, Right Triangle, Arc, Inradius, Radius, Incircle, Measurement.


Geometry Problem 1291. Three Squares, Collinear Vertices, Midpoint, Congruence.


Bootstrap Mind Maps Index.


Geometry Problem 1290. Triangle, Internal Angle Bisector, Median, Parallel, Measurement, Metric Relations.


The Base of the Statue of Liberty, Star Polygon of 11 Vertices and the Golden Rectangle.
HTML5 Animation for iPad.


Geometry Problem 1289. Triangle, Cevian, Concurrency, Measurement, Metric Relations.


Paracas mantle 200 A.D and Golden Rectangles.


Geometry Problem 1282. Three Squares, Common Vertex, Midpoint, Perpendicular, 90 Degrees.


Geometric Art: Isolines or Contour Lines of Problem 763, Mobile Apss.


Geometry Problem 1288. Triangle, 3050100 Degrees, Area, Inradius, Metric Relations, Measurement.


Geometry Problem 1287. Triangle, 4010040 Degrees, Congruence, Area, Metric Relations, Measurement.


Geometry Problem 1286. Triangle, Quadrilateral, 60, 135, 105 Degree Angles, Congruence, Measurement.


Geometry Problem 1285. Triangle, Quadrilateral, 60, 150, 90 Degree Angles, Congruence, Measurement.


Geometry Problem 1284. Two Equilateral Triangle, Midpoint, Congruence.


MindMap of Academic Disciplines.


Geometry Problem 1283. Two Equilateral Triangle, Perpendicular, Midpoint.


Geometry Problem 1281. Triangle, Circle, Diameter, Tangent, Altitude, Congruent Angles.


String Art 18: Stitching, Geometric Design, Pattern, Symmetry, Software, iPad


Geometry Problem 1280. Quadrilateral, Perpendicular Diagonals, Isosceles Right Triangles, 45 Degrees, Collinear Points.


String Art 19: Cross Stitch, Geometric Design, Pattern, Symmetry, Software, iPad


Geometry Problem 1279. Parallelogram, Midpoint, Triangle, Area, 3/10.


Geometry Problem 676 in motion, typography.


Geometry Problem 1278. Square, 345 Right Triangle, Midpoint.


Geometry Problem 1277. Equilateral Triangle, Circumcircle, Externally Tangent Circles, Tangent Line, Measurement.


Geometry Problem 1276. Equilateral Triangle, Circumcircle, Internally Tangent Circles, Tangent Line, Measurement.


Geometry Problem 1273. Circle, Tangent, Secant, Midpoint, Isogonal Lines, Congruent Angles.


Geometry Problem 1275. Equilateral Triangle, Perpendicular, Projection, Metric Relations, Measurement.


Geometry Problem 1274. Isosceles Triangle, 802080 Degrees, Metric Relations, Measurement.


Geometry Problem 1268 in motion.


Geometry Problem 1272. Isosceles Triangle, Median, Midpoint, Perpendicular, 90 Degrees, Angles, Congruence.


Geometry Problem 1271. Triangle, Incircle, Incenter, Excircle, Excenter, Escribed Circle, Tangency Points, Six Concyclic Points.


Geometry Problem 1270. Triangle, Excircle, Excenter, Escribed Circle, Tangency Points, Perpendicular, 90 Degrees, Angle Bisector.


Geometry Problem 1269. Triangle, Incircle, Incenter, Inscribed Circle, Tangency Points, Perpendicular, 90 Degrees, Angle Bisector.


Geometry Problem 1268. Triangle, Exterior Angle Bisector, Circumcircle, Circle, Chord, Parallel, Concyclic Points, Cyclic Quadrilateral.


String Art 16: Bézier curves, Geometric Design, Pattern, Symmetry, Software, iPad


Geometry Problem 1267. Triangle, Incircle, Excircle, Circle, Tangency Points, Perpendicular, 90 Degrees, Parallelogram.

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