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Find the aprox. surface area of the planet Mars id the equator is about 4,222 miles long. Round to the nearest thousand square miles

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Circumference = 2πr r = C/2π = 4222/2π = 2111/π A = 4πr² = 4π(2111/π)² = (4/π)(2111)² = 5673964 mi² rounded that is 537, 000 mi²

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55, 907, 000 sq miles

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You are given the length of a circle. You can find the planetary radius of Mars from that. Then Google the formula for the Surface Area of a Sphere.


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