Question

Convert:

4.2 m = ____ cm.

Answer 1

1. Metre and centimetre are the two standard units to measure length.
2. To convert a metre into a centimetre, multiply the given number with 100.

As,

1 m = 100 cm

4.2 m = 4.2$\times$100 cm

4.2 m = 420 cm.

Hence, 4.2 m = 420 cm.