Дано: ABCD — прямоугольник; BM — биссектриса угла B; AM = MD; BC = 12 см. Найти: PABCD.
Ответы
ответ:сори не знаю
Пошаговое объяснение:
Travelling is one of the best activities a person can do. When you travel you get new experience, learn about the cultures of other countries and visit unique places around the whole world. Travelling is learning foreign languages, tasting local dishes and meeting new friends. I like beach holiday but at the same time I can’t stay at one place for a long time. So usually when we go travelling we try to combine sightseeing and relaxing on the seaside. So my dream holiday is not an exception. I would like to go to luxurious five star hotel with delicious food and no Russian people around. There should certainly be a swimming pool and it should be close to the sea. I like when there are young people in the hotel, because then it usually has parties every night, where you can dance and meet interesting people. I hope someday my dream will come true and I will have a perfect holiday.
Объяснение:
Б) P = AB + BC + AC = 6 × 2 + 6 корней из 3 + 6 = 18 + 6 корней из 3в) AC = BC = 8
AB^2 = AC^2 = BC^2 = 8^2 + 8^2 = 128
AB = корень из 128 = 8 корней из 2
P = AB + BC + AC = 8 корней из 2 + 8 + 8 = 16 + 8 корней из 2
вроде правильно)))
Значит у основания угол равен 112градусам, тк трапеция равнобедренная, то соответственно у оснований углы равныПо теореме Пифагора c^2=a^2+b^2, где c- гипотенуза, то c=√16^2+12^2=√256+144=√400=20
Другие вопросы по геометрии
