Новогодний фонарик! Потрясающий ответ!
Найти площадь квадрата, зная площадь одной луночки.
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![Новогодний домик-фонарик [diy]](https://sun9-59.userapi.com/aS03wT935l4AaRtBpB243PjUmRmrzi-LoFODZQ/LRvV_c-dNlE.jpg)
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