3.(i) Express 5 cm in metre and kilometre  (ii) Express 35 mm in cm, m and km

Answers (1)

As we know,

1 centimeter = 10 millimeter 

1 meter = 100 centimeter.

And 

1 kilometer = 1000 meter

So,

i) 5 cm

5 \:cm=\frac{5}{100}m=0.05m

5 \:cm=\frac{5}{100}m=0.05m=\frac{0.005}{1000}=0.000005\:km

ii) 35 mm

35\:mm=\frac{35}{10}cm=3.5cm

35\:mm=\frac{35}{10}cm=3.5cm=\frac{3.5}{100}m=0.035m

35\:mm=\frac{35}{10}cm=3.5cm=\frac{3.5}{100}m=0.035m=\frac{0.035}{1000}km=0.000035km

 

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