Предмет: Геометрия, автор: elkzn197

Дано:ABCD параллелограмма AB=5см BC=6см угол A =30° найти периметр и углы параллелограммы

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Автор ответа: mari7664

2

P=2*(a+b)=2*(5+6)=22 (см)
По свойству противоположных углов получаем угол А=углу С, угол В=углу D. По свойству: сумма соседних углов в параллелограмме равна 180, получаем, что угол В= 180-30=150.
Ответ: Р=22см, 30,30,150,150

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