Question

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Answer 1

The question is: Find the length of an arc of 40° in a circle with an 8 inch radius.
The possible answers are:
A. 8(pi)/9 inches
B. 16(pi)/9 inches
C. 64(pi)/9 inches

Answer 2

40° is 1/9 of a circle, so the arc length will be 1/9 of the circumference.

Answer 3

http://assets.openstudy.com/updates/attachments/566f0c33e4b0d639d63d8665-vickyisthesmartone123-1450118368216-ew-thumbnail.png

Answer 4

\[C=2\pi*r=?\] \[C_{40°}=2\pi*r/9\]

Answer 5

So I would do 2(pi)*8/9
16(pi)/9