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Mathematics, 09.12.2020 14:00 Trinityslater

A builder makes staircases where each step is 28 cm long and rises 18 cm so people don't trip. Every staircase has a stringer - a diagonal support connecting all of the steps.

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A builder makes staircases where each step is 28 cm long and rises 18 cm so people don't trip. Every...
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