MathDB

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Part of 2021 Novosibirsk Oral Olympiad in Geometry

Problems(2)

cut rectangle into squares, only 2 are odd (2021 Novosibirsk Oral Geo Oly 7.1)

Source:

4/27/2021
Cut the 9×109 \times 10 grid rectangle along the grid lines into several squares so that there are exactly two of them with odd sidelengths.
geometryrectangle
cut rectangle into squares, only 4 are odd (2021 Novosibirsk Oral Geo Oly 9.1)

Source:

5/25/2021
Cut the 19×2019 \times 20 grid rectangle along the grid lines into several squares so that there are exactly four of them with odd sidelengths.
geometryrectangle