stanleysdv63 stanleysdv63

12-04-2020
Mathematics

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the radius of is circle is 3 kilometers. what is the length of a 180 arc?

the radius of is circle is 3 kilometers what is the length of a 180 arc class=

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Larrysammz Larrysammz

12-04-2020

Answer:

9.43km

Step-by-step explanation:

Length of an arc = 2πr(Ф/360)= 2 x 22/7 x 3 x (180/360)

2 x22/7 x 3 x 1/2 = 22/7 x 3 = 66/7 = 9.42857142857≈9.43

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Please help ! i really need it