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3 years ago

9

Merideth has a set of ninety 1-inch tiles. If she starts with one tile, then surrounds it with a ring of tile to create a larger

square, how many surrounding rings can she make before she runs out of tiles?

1 answer:

antiseptic1488 [7]3 years ago

8 0

90-1-8-16-24-32= 81 so 4 rings with 9 tiles left

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3 years ago

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3 years ago

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Now let $y=\sqrt2\tan z$ , so that $\mathrm dy=\sqrt2\sec^2z\,\mathrm dz$ . Then

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3 years ago