Длина ломаной АВС равна 80 мм. АВ = 7 см. Вычисли длину звена ВС. Проверь ответ измерением.

решение к заданию по математике
 

1) I will be able to learn about the country and its traditions. 2) I could not go there on my own. 3) We ought to go now, if we don't want to be late. 4) You should ask your parents for some advice. 5) I couldn't afford to go on holiday last summer. 6) You needn't get a visa to go there. 7) Sorry, but I will not be able to help you. 8) You ought to go abroad for your next holidays. 9) Shannon was not able to come to our party. 10) You needn't pack warm clothes, because it's quite warm there in summer.

A There were competitions in 19 different sports at the Paralympic Games in Greece. Our sportsmen took part in 9 sports. The Paralympic team consisted of 84 sportsmen and women. Russian sportsmen won 16 gold, 8 silver and 17 bronze medals. Russian track and field athletes and swimmers got more gold medals than the others. Russian judoists also performed very well. They got 6 different medals.
В At the winter Paralympic Games in Turin, which took place from 10 to 19 of March, the Russian team got 33 medals: 13 gold, 13 silver and 7 bronze medals. Russian sportsmen took part only in three different sports out of 5 that were in the Paralympic programme: biathlon, ski races and mountain skiing. Russian teams didn't take part in curling and hockey.