Oppervlakte: Verskil tussen weergawes
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Lyn 15:
|[[aar]] (a) = 100 vierkante meters (m²)||[[vierkante yard]] = 9 vierkante voet = 0.83612736 vierkante meters (m²)
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|[[hektaar]] (ha) = 10,000 vierkante meters (m²)||vierkante [[roede]] = 30.25 vierkante [[jaart]] = 25.2928526 vierkante meters (m²)
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|[[vierkante kilometer]] (km²) = 1,000,000 vierkante meters (m²)||[[akker]] = 160 vierkante roede of 4,840 vierkante [[jaart]] = 4046.8564224 vierkante meters (m²)
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|[[vierkante megameters]] (Mm²) = 10<sup>12</sup> vierkante meters (m²)||[[vierkante myl]] = 640 akkers = 2.5899881103 vierkante kilometers (km²)
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