# Geometry from the Land of the Incas 6/80

 Previous - Next Recent Additions (Page 6 of 80) Jigsaw Puzzle: Pascal's Theorem 24 Pieces. Geometry Problem 1187 Triangle, Quadrilateral, Midpoints, Area. Kaleidoscope of Problem 974 based on Poincare Disk Model. iPad Apps. Geometry Problem 1186 Right Triangle, Square, Inscribed Circle, Tangent, Quadrilateral, Area. Geometry Problem 1169Complete Quadrilateral, Orthocenters of the Component Triangles, Collinear Points, Ortholine, Steiner-line, Orthocentric line. Geometry Problem 1185Similar Rectangles, Four Quadrilaterals, Sum of the Areas, Metric Relations. Geometry Problem 1184Right Triangle, Square, Inscribed Circle, Tangent, Concurrent Lines. Geometry Problem 1183Parallelogram, Diagonals, Circle, Tangent Line. Geometry Problem 1182Two Squares, Four Quadrilaterals, Sum of the Areas, Metric Relations. Puzzle: Euler Line and Nine Point Center See also 96 Piece triangles Geometry Problem 1181Cyclic Quadrilateral and Tangential Quadrilateral, Diameter as a Diagonal, Incenter, Circumcenter. Stonehenge builders had geometry skills to rival Pythagoras Five years of detailed research, carried out by the Oxford University landscape archaeologist Anthony Johnson, claims that Stonehenge was designed and built using advanced geometry. Pi: Word Cloud and News. Archimedes' Mathematical constant. Geometry Problem 1177 Triangle, Two Angle Bisectors, Metric Relations. Geometry Problem 1180Quadrilateral, 120 Degrees, Diagonals, Perpendicular. Geometric art of triangle centers visual summaryDelaunay Triangulation, Circular Random Composition, iPad Apps. Geometry Problem 1179Triangle, Centroid, Transversal, Sum of Ratios, Sides. Geometry Problem 1178 Triangle, Angle Bisector, Metric Relations. Geometry Problem 1176 Cyclic Quadrilateral, Diagonals, Six Diameters, Circles, Collinear Points, Concurrent Lines. Geometry Problem 1174 Triangle, Quadrilateral, Double, Triple, Angle, Congruence, Excenter, Angle Bisector. Math Graduate Courses by the MIT OpenCourseWare, Interactive Mind Map.Free publication of MIT course materials. Geometry Problem 1173Triangle, Cevian, Angle, Congruence, Similarity. Geometry Problem 1172Cyclic Quadrilateral, Circle, Secant, Triangle, Similarity, Metric Relations. Geometry Art 871 - 880.Congruent Circles, Intersecting Circles, Secant, Center, Angle Trisection, Triple Angle. Geometry Problem 1171Area of a Triangle in terms of the three altitude or heights ha, hb, hc. Geometry Problem 1170Area of a Triangle in terms of the three sides, a-b-c. Geometry Problem 1168 Construction of the Inscribed Circle of the Arbelos, Semicircles, Diameter, Circle, Triangle, Circumcircle, Tangent. Geometry Problem 1167. Triangle, Circle, Circumcircle, Perpendicular, 90 Degrees, Collinear Points. Geometry Problem 1166. Triangle, Circles, Diameters, Secant, Midpoint, Congruence. Geometry Problem 1165. Right Triangle, Circle, Center, Radius, Cathetus, Perpendicular, 90 Degrees, Perimeter, Metric Relations. Geometry Problem 1164. Triangle, Angle Bisector, Cevian. Geometry Problem 1163. Isosceles Triangle, Congruence, Double Angle, Circle, Concyclic Points, Circumcenter, Perpendicular, Angle Bisector. Geometry Problem 1162. Triangle, Congruence, Double Angle, Parallel Lines, Circle, Circumcenter. Geometry Problem 1161. Scalene Triangle, 60 Degrees, Angle, Orthocenter, Circumcenter, Equilateral Triangle, Congruence. Geometry Problem 1160. Triangle, Three Squares, Area, Equivalent Triangles. Geometry Problem 1159. Triangle, Circumcircle, Sagitta, Chord, Arc, Metric Relations. Geometry Art Problem 1161.Triangle, Circle. Geometry Problem 1158. Four Tangent Circles, Tangent Chord, Radius, Metric Relations. Geometry Problem 1157.Four Circles, Mutually Tangent, 90 Degrees, Radius, Metric Relations. Geometry Problem 1156.Square, Tangent Line, 90 Degrees, Metric Relations. Geometry Problem 1155.Right Triangle, Altitude, Incenter, Incircle, Area. Geometry Problem 1154.Sangaku Three circles and a tangent line. Geometry Problem 1153.Triangle, Angle Bisectors, Perpendicular, Congruence. Geometry Problem 1152.Triangle, Quadrilateral, Angle, 10, 20, 30 Degrees. Geometry Problem 1151.Circle, Diameter, Chord, Perpendicular, 90 Degrees, Metric Relations. Geometry Problem 1150.Circle, Perpendicular Secants, 90 Degrees, Congruence. Geometry Problem 1149.Isosceles Triangle, Altitude, Cevian, Incircles, Tangent, Congruence. Dynamic Geometry Problem 1148 Static Geometry Problem 1148.Right Triangle, Incircle, Circumcircle, Tangent, Radius. GeoGebra, HTML5 Animation for Tablets (iPad, Nexus). Adobe Slate for iPad, a Free Visual Storytelling App. Geometry Problems 1-10. Geometry Problem 1147.Scalene Triangle, Orthocenter, Circumcenter, Congruence, Equilateral Triangle. Geometry Problem 1146.Triangle, Interior Point, 10, 20, 30, 130 degrees, Congruence. Geometry Problem 1145.Three Squares, Midpoints. String Art, Geometric Patterns, Bezier Curves, Symmetry - Index. The line gets a lot of attention, with wire and string art. Go to Page: Previous | 1 | 10 | 20 | 30 | 40 | 50 | 60 | 70 | 80 | Next

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