Software: Tabula, Triangle Centroid by Folding

The art of origami or paper folding has received a considerable amount of mathematical study.
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Geometry Problems 571-580

Ten Geometry Problems
Click the figure below to see ten problems about: Circle, Diameter, Chord, Perpendicular, Measurement, Right triangle, Median, Diameter, Excircle, Tangent circles, Cyclic quadrilateral, Angle bisector, Centroid, Isosceles, Midpoint, Concyclic, 90 Degrees, Transversal, Area, Tangency Points.

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Level: High School, College geometry

Problem 576: Centroid, Triangle, Quadrilateral, Parallel, Measurement

Geometry Problem
Click the figure below to see the complete problem 576.


Zoom at: Geometry Problem 576

Geometry Problems 401 - 410

Ten Geometry Problems
Click the figure below to see problems 401-410 about: Area, Triangle, Angle bisector, Circumcircle, Perpendicular bisector, Congruence, Hexagon, Centroid, Similarity, Congruence, Equilateral, Concurrent.

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Level: High School, College geometry

Geometry Problems 251 - 260

Ten Geometry Problems
Click the figure below to see problems 251-260 about Parallelogram, Rectangle, Triangle, Square, Circle, Area, Side, Equilateral, Isosceles, Centroid, Distance, Vertex, Circumcircle, Incircle, Tangent, Diagonal.

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Level: High School, SAT Prep, College geometry

Geometry Problems 121-130: Triangle, Area, Similarity, Trisection, Hexagon, Star, Incenter

Geometry Problem
Click the figure below to see problems 121-130 about Triangle, Area, Similarity, Trisection, Hexagon, Star, Incenter, Centroid, Parallel, Proportions, Angle Bisector, Ratio.

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See also:
Problems 121-130

Level: High School, SAT Prep, College geometry

Geometry Problems 91 - 100

Geometry Problem
Click the figure below to see problems 91-100 about Similarity, Triangles, Altitude, Parallel, Circumcircle, Parallelogram, Incenter, Area, Centroid, Quadrilateral, Archimedes, Pythagoras.


See also:
Problems 91-100

Level: High School, SAT Prep, College geometry

Distance between the Incenter and the Centroid of a Triangle

Proposed Problem
Prove that the distance between the incenter I and the centroid G of a triangle ABC is:
Click the figure below to see the complete illustration.


See also:
Distance between the Incenter and the Centroid
Level: High School, SAT Prep, College geometry

Distances between Triangle Centers

Index
Click the figure below to see the Distances between Triangle Centers Index


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Distances between Triangle Centers
Level: High School, SAT Prep, College geometry

Problem 402. Hexagon, Triangle, Centroid, Parallel, Congruence, Similarity

Proposed Problem
Click the figure below to see the complete problem 402 about Hexagon, Triangle, Centroid, Parallel, Congruence, Similarity.


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Complete Problem 402
Level: High School, SAT Prep, College geometry

Centroid or Barycenter of a triangle, Theorems and Problems

Theorems and Problems Index
Click the figure below to see the complete Centroid or Barycenter Index.


See also:
Centroid or Barycenter Index
Collection of Geometry Problems

Level: High School, SAT Prep, College geometry

Problem 255: Triangle, Centroid, Vertices, Interior/Exterior Point, Distances, Squares

Proposed Problem


See complete Problem 255 at:
gogeometry.com/problem/p255_triangle_centroid_squares_point_vertex.htm

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

Problem 254: Triangle, Centroid, Vertices, Interior/Exterior Point, Distances, Squares

Proposed Problem


See complete Problem 254 at:
gogeometry.com/problem/p254_triangle_centroid_squares_interior_point.htm

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

Problem 253: Triangle, Centroid, Vertices, Distances, Squares

Proposed Problem


See complete Problem 253 at:
gogeometry.com/problem/p253_triangle_centroid_squares.htm

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

Problem 247. Napoleon's Theorem II. Internal Equilateral triangles

Inner Napoleon Triangle


See complete Problem 247 at:
gogeometry.com/problem/p247_napoleon_theorem_inner_equilateral_triangle.htm

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

Problem 246. Napoleon's Theorem I. External Equilateral triangles

Outer Napoleon Triangle


See complete Problem 246 at:
gogeometry.com/problem/p246_napoleon_theorem_external_equilateral_triangle.htm

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

Elearn Geometry Problem 229: Triangle, Centroid, Transversal

See complete Problem 229 at:
gogeometry.com/problem/p229_triangle_centroid_transversal_perpendicular.htm

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

Elearn Geometry Problem 227: Triangle, Centroid, Exterior line

See complete Problem 227 at:
gogeometry.com/problem/p227_triangle_centroid_perpendicular.htm

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

Elearn Geometry Problem 226: Triangle, Centroid, Perpendiculars

See complete Problem 226 at:
gogeometry.com/problem/p226_triangle_centroid_perpendicular.htm

Level: High School, SAT Prep, College geometry

Post your solutions or ideas in the comments.

Triangle Centers Journey (1976).

Journey to the Center of a Triangle
Incenter, Circumcenter, Centroid, Orthocenter.


See animation at:
http://www.gogeometry.com/center/triangle_centers_journey.htm