5m2=多少cm2

答案是A
5m^2
=5*(100^2) cm^2
=50000 cm^2
因為佢係cm^2,所以要乘2次方
*100姐係由m轉做cm..
如果係3次方呢?
5m^3
=5*(100^3)
=5000000 cm^3
P.S. (^n)姐係幾多次方
^2 = 2次方
^3=3次方

係唔係b?

1m = 100cm
1m2 = 10 000cm2 (因為= 1m X 1m = 100cm X 100cm )

所以...
5m2 = 5 X 10 000
=50 000 cm2

2008-02-25 02:57:09 補充：
答案是A

5m^2=500cm^2
because 1m=100cm
this law is same to use on square numbers!!

5m2等於多少cm2?
答案係b)500cm2
因為1m2=100cm2
所以5m2=500cm2

5m^2= 5*100cm*100cm = 50000cm^2