问题:
已知△ABC ∽△A 1B 1C 1,AB:A 1B 1=2:3,则S △ABC与S △A1B1C1之比为______.
已知△ABC ∽△A 1B 1C 1,AB:A 1B 1=2:3,则S △ABC与S △A1B1C1之比为______.
参考答案: