What is the length of EF?

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asked May 19, 2020 24.6k views

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Paul Sinnema · Answer 1 · 2020-05-24T02:19:59+0000

The formula for arc length is l = θr. θ is the angle in radians and r is the radius of the circle. Plugging in we get pi over 2 all times 4. 4 over 2 reduces to 2. Finally, our answer is 2pi

What is the length of EF?

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