Antarctica is roughly semicircular, with a radius of 2000 km (see the figure). The average thickness of its ice cover is 3000 m. How many cubic centimeters of ice does Antarctica contain? (Ignore the curvature of Earth.)
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With all due respect your amswer is wrong. The question clearly states
that Antarctica is a semicircle and in case you forgot the formula for
the area of a semicircle is (π×r^2)/ 2 not πr^2 so the answer would
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