A regular hexagon is divided in four triangles and one quadrilateral. Express the hexagon area in terms of areas A, B and C.

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geometry puzzles

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- Post author By Rik D. Tangerman
- Post date August 22, 2024
- No Comments on Tip of tipi

- Tags area, hexagon, quadrilateral, triangle

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- Post author By Rik D. Tangerman
- Post date August 21, 2024
- 1 Comment on The Dutch roll

Two regular hexagons share a vertex. What is the angle α?

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- Post author By Rik D. Tangerman
- Post date June 19, 2024
- No Comments on Hex division II

A regular hexagon and two equals angles. What is blue : green : red?

- Tags hexagon, length, proportion

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- Post author By Rik D. Tangerman
- Post date June 12, 2024
- No Comments on Stand behind

Two regular hexagons share a vertex. Prove that the blue points are collinear.

- Tags hexagon

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- Post author By Rik D. Tangerman
- Post date April 9, 2024
- No Comments on Pull the string

Two regular hexagons and a circumcircle. What is blue : red?

- Tags circle, hexagon, length, proportion

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- Post author By Rik D. Tangerman
- Post date April 3, 2024
- No Comments on Six six four

Two regular hexagons and a square. What’s the angle α?

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- Post author By Rik D. Tangerman
- Post date March 11, 2024
- No Comments on The punctured hexagon

A regular hexagon, a square and an equilateral triangle. Show that the top vertex of the triangle is on the hexagon circumcircle.

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- Post author By Rik D. Tangerman
- Post date February 15, 2024
- No Comments on Four six four

A regular hexagon and two similar rectangles. What fraction is green?

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- Post author By Rik D. Tangerman
- Post date February 7, 2024
- No Comments on Six four

A regular hexagon and an inscribed tilted rectangle. What is the angle α?

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- Post author By Marshall W. Buck
- Post date February 6, 2024
- No Comments on Ball of yarn

A cyclic hexagon has concurrent cross diagonals. What is the ratio of the product of the orange sides compared to the product of the purple sides. (ace:bdf).

- Tags circle, hexagon, length, proportion