Given green and blue discs, construct a red region so that for every ray leaving L stays in the blue region exactly as long as it does in the pink region. (Namely, KM = OL.)

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geometry puzzles

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- Post author By Marshall W. Buck
- Post date April 19, 2024
- No Comments on Double eclipse

- Tags circle, construction, length, proportion

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- Post author By Marshall W. Buck
- Post date March 28, 2024
- No Comments on Two medians and one side

A triangle has sides a,b,c and the medians d,e,f ending at those sides, respectively. Given only the lengths (b,d,e) construct the triangle (a,b,c). (Start with a triangle with side lengths determined in some manor from the given 3 lengths.)

- Tags construction, triangle

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- Post author By Marshall W. Buck
- Post date March 12, 2024
- No Comments on Median between sides

A triangle has sides a,b,c and the medians d,e,f ending at those sides, respectively. Given the lengths (a,b,f) construct the triangle. (Start with a triangle with side lengths determined in some manor from the given 3 lengths.)

- Tags construction, length, triangle

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- Post author By Rik D. Tangerman
- Post date April 1, 2021
- No Comments on The first cut

Using one straight cut, divide this triangle in two pieces. Paste them together to form a parallelogram with perimeter 19.