Question

В бассейн , площадь дна которого равна 1 га, налили миллион литров воды .Можно ли в этом бассейне провести соревнования среди учеников 5 класса

Answer 1

1 л=1 куб. дм
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1)1 га=100 а=10000 кв.м - площадь дна
2)1 000 000 л=1 000 000 куб. дм=1 000 куб. м - обьем воды залитой в бассейн
3) 1 000 куб.м :10 000 кв.м=0.1 м=1 дм=10 см - высота басейна
очевидно что в бассейне высотой 10 см человек не поплавает
ответ: нет

Answer 2

Can a competition among 5th-grade students be held in a pool with a bottom area of 1 hectare and a million liters of water?

No, it would not be safe to hold a competition among 5th-grade students in a pool with a bottom area of 1 hectare and a million liters of water. The depth of the water in such a pool would be extremely shallow, making it unsafe for any kind of competition, especially for children. Additionally, the large surface area of the pool does not necessarily indicate a suitable depth for swimming or any kind of competition.

Safety Concerns: The shallow depth of the pool, despite its large area, poses a significant safety risk for any kind of competition, especially involving children.

Water Volume and Pool Depth: The volume of water in the pool, which is a million liters, does not necessarily indicate a safe or suitable depth for swimming or competitions.

Therefore, it would not be advisable to hold a competition among 5th-grade students in a pool with the given dimensions.