Предмет: Геометрия, автор: sasatofan83

Діагональ ромба утворює з його стороною кут 25⁰. Знайдіть тупий кут ромба.​

Ответы

Автор ответа: paskovadim1594
4

Если диагональ ромба образует с одной из его сторон угол в 25°, то  

острый угол ромба = 2*25°=50°, т.к. диагонали ромба - биссектрисы его углов.

Сумма углов ромба, как и любого параллелограмма, прилежащих к одной его стороне равна 180°, поэтому бОльший угол ромба равен

180°-50°=130° .

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DRAGON SOUP
There was a kingdom and a king who was very fat because he was fond of food. He began his day with a big breakfast at 8 o'clock and had a snack at 10 and a large lunch at 12. Then he watched tennis or horses, then he had a small snack at 2 in the afternoon. At 4 he had sandwiches and at 7 in the evening he happily sat down to a royal dinner party.
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