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Eight circles of radius 1 have centers on a larger common circle, and adjacent circles are tangent. Find the area of the common circle.
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Nine more than four times a number is the same as one less than twice the number. find the number?
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The holiday party will cost $160 if 8 people attend. if there are 40 people who attend the party, how much will the holiday party cost
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Eight circles of radius 1 have centers on a larger common circle, and adjacent circles are tangent....
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Mathematics, 14.12.2019 04:31
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