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Pls help me i beg u i been trying to find videos of this and it still dont understand
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Pls help me i beg u i been trying to find videos of this and it still dont understand

Pls help me i beg u i been trying to find videos of this and it still dont understand-example-1
User Kyogs
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to find the circumference using radius the formula is 2 times radius times 3.14 and you should get your answer
User Mahdi Majidzadeh
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The answer from problem 11 is 17.584 this is because to work out the circumference you use pi x diameter and to work out the diameter you multiply your radius by 2 then multiply it by pi.
For problem 12 is the same process and the answer is 81.64
User Bao Dinh
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