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27 September, 10:01

4. 7G4 - M

Kylie used wire fencing to form a border around a circular region in her back yard. If the

diameter of the circular region was 5 yards, what was the total length of the border,

rounded to the nearest tenth of a yard?

a.

15.7

b. 31.4

C. 78.5

d. 157.1

+3
Answers (1)
  1. 27 September, 11:32
    0
    You need to find the radius. It is half the diameter

    The radius is 2.5

    C=2 pi r

    C=2 times 2.5 = 5. 5 times pi = 15.7

    The answer is 15.7
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