perplexus.info :: Geometry : Tree planting exercise

Tree planting exercise (Posted on 2006-10-21)

How can you plant seven straight rows of trees with six trees per row such that twenty-one trees are planted in total?

How can you plant nine straight rows of trees with three trees per row such that nine trees are planted in total?

See The Solution Submitted by JLo

Rating: 2.0000 (2 votes)

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part1

| Comment 5 of 11 |

Take an arc < 180 degree, select any 7 points and draw tangent lines. Plant trees at line crossings.

Posted by Art M on 2006-10-22 16:06:15

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