Listen and repeat. Then read out the sentences. sixth, seventh, eighth, ninth, tenth, three

/Ɵ/: sixth, seventh, eighth, ninth, tenth, three — шестой, седьмой, восьмой, девятый, десятый, три
/ð/: the, this, those, there — определенный артикль, этот, тот, это

The kitchen is on the fifth floor. This is the tenth floor.

360/30 = 1212+6=18360/18=20

B=√(c^2-a^2)=√(20^2-12^2)=16 cм.