Geometry from the Land of the Incas 47/80

Geometry, Machu Picchu

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Recent Additions (Page 47 of 80)

Pentagons - Index

Elearning 252: Rectangle area

Proposed Problem 252.
Rectangle, isosceles right triangle, square, area.

Elearning: Parallelogram

Proposed Problem 251.
Parallelogram, sides, diagonals, squares, areas.

Quadrilateral, diagonals

Proposed Problem 250.
Quadrilateral, sides, diagonals, midpoints, squares.

Problem about triangle, medians

Proposed Problem 249.
Triangle sides, medians, squares.

Median Length theorem

Median length, Apollonius' Theorem.

Euclid Elements Book II

Euclid's Elements Book II, Proposition 12: Law of Cosines.

Euclid Elements Book II

Euclid's Elements Book II, Proposition 13: Law of Cosines.

Napoleon Theorem III

Proposed Problem 248.
Napoleon's Theorem III. Inner and outer Napoleon triangles, Area.

Elearning 247: Napoleon's theorem I"

Proposed Problem 247.
Napoleon's Theorem II. Internal Equilateral triangles. Inner Napoleon triangle.

Elearning 246: Napoleon's theorem I

Proposed Problem 246.
Napoleon's Theorem I. External Equilateral triangles. Outer Napoleon triangle.

Elearning 245

Proposed Problem 245. Parallelogram with Equilateral triangles.

Elearning 24

Proposed Problem 244. Square, Diagonals, Centers, Distance.

Elearning 243

Proposed Problem 243. Triangle with Equilateral triangles, Parallelogram.

Elearning 242

Proposed Problem 242. Triangle with Equilateral triangles, Parallelogram.

Elearning 241

Proposed Problem 241. Triangle with Equilateral triangles, Congruence.

Elearn 240: Equilateral triangle

Proposed Problem 240. Triangle with Equilateral triangles, Parallelogram.

Elearn 239: Square

Proposed Problem 239. Square, Midpoints, Lines, Congruence, Pythagoras.

Elearn 238: Square

Proposed Problem 238. Square, Midpoints, Lines, Congruence.

Elearn 237: Quadrilateral

Proposed Problem 237. Quadrilateral, Midpoints, Exterior line, Perpendicular lines.

Elearn 236: Quadrilateral

Proposed Problem 236. Quadrilateral, Midpoints, Exterior line, Perpendicular lines.

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