Сторона равностороннего треугольника равна а. Найдите высоту этого треугольника, радиус описанной окружности, радиус вписанной окружности.

As for me
1.       I like to travel plane.
2.       It’s so exciting!
3.       We buy tickets at the booking office.
 4.       The tickets are very expensive.
5.       We often fly from Russia to the USA.
 6.       Travelling by plane is an extraordinary thing.
7.       You can see the land from the sky when you travel.

1)I like to travel by plane
2)it is so exciting/amazing/comfortable/fast
3)we buy tickets at the airport
4)the tickets are very expensive/cheap
5)we often fly from Moscow to St.Petersburg
6)traveling by plane is comfortable/amazing
7)you can see clouds, sky, fields, houses, farms EVERYTHING!