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Natali [406]
3 years ago
13

About 70% of Earth’s surface is covered by water. If the diameter of Earth is about 12,750 km, find the area not covered by wate

r to the nearest 100,000 km2.
Mathematics
1 answer:
hichkok12 [17]3 years ago
4 0
Earth diameter = 12,750 km
Earth radius = 6,375 km
Sphere Surface Area     =    <span> 4 • <span>π <span>• r²
</span></span></span>Sphere Surface Area     =    4 * 3.141<span>59 * 6375^2
</span>Sphere Surface Area     =    4 * 3.14159 * <span> <span> <span> 40,640,625 </span> </span> </span>
<span> <span> <span> Earth's Entire </span></span></span><span>Surface Area     =    510,704,724 square kilometers
Surface NOT covered by water =  </span><span>510,704,724 * .3
</span>Surface NOT covered by water =  <span> <span> <span> 153,211,417</span></span></span><span> square kilometers</span>


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