1 dm = 10 cm
200 dm = 2000 cm
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there are 200 cm in 20 dm
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!
10 cm in 1 dm
first, convert everything to cm: 200 cm x 200 cm x 20 cm (m = 100 cm, dm = 10 cm) then: 200 x 200 x 20 = 800,000 cm3 (or 800 dm3 or 0.8 m3)
1 dm = 10 cmSo 5 cm = 0.5 dm