Question

How will your write 4cm and 2mm in 'cm' using dacimals

Answer 1

Given,

The main measurement is 4 centimetres and 2 milimetres.

To find,

The single decimal form of the measurement in centimetre unit.

Solution,

For the conversion of the whole measurement in the centimetre unit, we need to convert the milimetres part of the measurement into the centimetres unit.

So,

10 mm = 1 cm

1 mm = 1/10 cm

2 mm = 2/10 = 0.2 cm

Now, the value of final measurement in the decimal form of centimetre unit, will be

= 4 cm + 0.2 cm

= 4.2 cm

Hence, the decimal form of the measurement is 4.2 centimetres.