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1 kilometer = 1,000 meters

1 meter = 1,000 mm

So 1 kilometer = 1,000,000 mm

Now, just square both sides of that statement:

(1 kilometer)2 = (1,000,000 mm)2

1 km2 = 1 trillion mm2

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14y ago
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Q: How many 1 mm squared is 1 kilometere squared?
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