Question

express 20cm in metres and kilometers​

Answer 1

Answer:

Step-by-step explanation:

1m =100cm ,1cm = 10^-2 m   , 20cm =20 ×10^-2 =2×10^-1 m  ,     1km =1000m ,1m =10^-3 km ,  2×10^-1 ×10^-3 km =2×10^-4 km . plz markme as a brainliest .

Answer 2

Answer:

20/100 =0.20 meterand km 20/100000=0.00020