Как то так..лайк если можно
Объяснение:
Трапеция ABCD, AD II BC; AD > BC (то есть AD = 16; BC = 12)
Средняя линяя равна (12 + 16)/2 = 14. Отрезок средней линии между диагональю АС и боковой стороной АВ равен половине малого основания ВС (то есть 6) - это средняя линяя в треугольнике АВС. Аналогично, отрезок средней линии между диагональю BD и боковай стороной CD тоже равен половине ВС (тоже 6) - это средняя линяя треугольника BCD. Поэтому искомый отрезок средней линии, заключенный между диагоналями, равен 14 - 2*6 = 2.
В общем случае, если основания a > b, то этот отрезок равен (a - b)/2
1.I've never eaten such delicious cakes before. 2 You've never been here before, have you? 3. You came to this Mall for the first time, didn't you? 4. Have you ever been late for a plane? 5. I met some interesting people during my time here. 6. George has had three accidents since he bought this car. 7 students have already passed this exam. - When did they give it up? 8. I haven't been to this cafe in a while. Last time I had lunch there was three months ago. 9. Since I got up this morning, I've had 10 cups of coffee. 10. Did you see Anna today? - No, I haven't met her this week. I think she's sick. 11. I'm sorry I haven't called you in so long, but I've been really busy lately. 12. We have just discussed this issue. - What decision did you make? 13. Since we started repairs, we've spent a lot of money, but we haven't finished the job yet. 14. I loved the movie I saw yesterday. I've always liked Comedy. 15. Did you hear the news? Anna married Paul. - How many people were at their wedding? 16. My husband has been on a business trip three times in the last month. Before he had never been away from home so often 17. Since Ella moved to Moscow, she has made a good career. She became a Manager in a major Bank. 18. Ever since my sister started working in a restaurant, it's so much better. 19. When dad returned from work in the evening, he said: "this morning I had an important meeting". 20. How long have you had this computer? - We bought it three years ago, and it's never broken down in all this time.
Нельзя сказать, что точка С лежит между точками А и В.