1. Hearing the voice of a comrade, I left the room to meet him. 2. Having read the book, boy returned it to the library. 3. I learned that the owner sold her only child. sneak into Canada. 4. Be careful when crossing the street. 5. Leaving things in the wardrobe, you get number. 6. Felt that Kerry was worried, Druet went backstage to cheer her up. 7. The boy having lost parents, he was placed in an orphanage. 8. Returning with guests from the hunt, Cyril Dubrovsky grabbed about him. 9. Pacing heavy He glanced out the window and stopped at the three. 10. "Hello, Mademoiselle Mescherskaya," she said in French, she does not look up from her knitting. 11. Words that I spoke about this in advance. 12. She someone is moaning. 13. He looked at a boy sitting on a chair in garden. 14. He quietly dozed off, sitting in a chair under a tree. 15. After kissing the children, she went to work. 16. Molly, ironing clothes in the living room, had already gone down to the kitchen. 17. Looking down, he saw his son with friends. 18. They are talking.
Свойство треугольника: Любая сторона треугольника меньше суммы двух других сторон и больше их разности: ( a < b + c,.. a > b – c;.. b < a + c,.. b > a – c; .. c < a + b,.. c > a – b )
Одна из сторон треугольника в два раза больше другой означает, что основание в этом треугольнике является меньшей стороной. В противном случае длина основания была бы равна сумме боковых сторон, и такой треугольник получится "вырожденным". Пусть основание равно х, тогда каждая боковая сторона 2х Периметр равен 2х+2х+х=5х х=55:5=11 см. ( основание) 11*2=22 см - каждая боковая сторона.
