Write affirmative sentences (~), negative sentences (X) and questions (?).
1 My parents (work) in town.
2 We (have lunch) at school. X
3 You (go) to a swimming club. ?
4 My brother (get) up early. V
5 He (make) his bed. X
6 Your friend (chat) to you.?
7 She (have breakfast) on school days. X
8 Your mother (take) the bus to work.?
3840/h^2 = 60, откуда h^2 = 64, откуда h=8.
Объем равен 30*8 = 240