Высота ромба, проведённая из вершины тупого угла, делит сторону ромба пополам. Найти углы ромба.

Прямая а пересекает плоскость альфа. Прямая б параллельна прямой а и прямой с. Определите взаимное расположение прямой с и плоскости альфа.

Предположим, что велосипед не падает, стоя на двух колесах. Вы привязали веревку к концу нижней педали и потянули назад. Куда поедет велосипед?:)

Put the verbs in brackets into the correct passive tense. 1. A: Who looks after your garden for you? B: It… (look after) by my brother. 2. A: That's a beautiful dress. Where did you buy it? B: Actually, it … (make) for me by my aunt. 3. A: Have you typed that letter yet, Miss Brown? B: It … (type) right now, sir. 4. A: Did you make the coffee when you got to work this morning? B: No, it … (already make) by the time I got there. 5. A: Are you going to pick up the children today? B: No, they… (pick up) by Roger. I've already arranged it. 6. A: Where is your watch? B: I broke it. It … (repair) at the moment. 7. A: Has the new furniture for my bedroom arrived? B: No, it … (not deliver) yet. 8. A: They are building a new sports centre in town. B: I know. It … (open) by the mayor next month.