alleryStart learning →Mars has a radius about half of Earth's. If Earth's radius is 6,400 km, Mars is about?
A1,600 km
B12,800 km
C3,200 km
D6,400 km
Answer & Solution
Correct answer: C. 3,200 km
Half of 6,400 km is 3,200 km, which matches the radius of Mars being about half of Earth's.
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