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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Sir Donald Coleman BaileyBorn 15 Sep 1901; died 5 May 1985 at age 83.British engineer who invented the Bailey bridge, which was of great military value in World War II. |