There is .0001 ha in a square meter
The question is imprecise - 16000 metres squared could be 16000m2 (16000 square metres) or 16000m x 16000m (256000000 square metres) One hectare is 11960 square yards (yard2)
1 cm2 = 0.0001 m2
100cm in a meter, 1002cm in a 12m
150,000 meters squared?!