20 feet = 609.6 cm
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there are 200 cm in 20 dm
20 inches = 50.8 cm (20 in.)(2.54 cm/in.) = 50.8 cm 1 inch = 2.54 cm Algebraic Steps / Dimensional Analysis Formula20 in*2.54 cm 1 in=50.8 cm 20 inches is 50.8 centimeters.
20 sq cm = 20*100 sq mm = 2000 sq mm
As 1 feet= 30.48 cms So 20 feet= 30.48 * 20 =609.6 cm
1 dm = 10 cm so 20 dm = 20*10 = 200 cm. Simple!1 dm = 10 cm so 20 dm = 20*10 = 200 cm. Simple!1 dm = 10 cm so 20 dm = 20*10 = 200 cm. Simple!1 dm = 10 cm so 20 dm = 20*10 = 200 cm. Simple!