Find the length of red arc AB
Find the length of red arc AB (r1=1, r2=2). Express result to the accuracy of 3 decimal.Correct answers: 43
The first user who solved this task is Roxana zavari.
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Yangtze River blocked for new damIn 1997, Chinese engineers completed the blocking of the Yangtze River, the first step toward what would be the world's largest hydroelectric dam project.* |