Find the length of an arc of 40° in a circle with an 8 inch radius. (Use 3.14 for and round to the nearest hundredths.) inches
Do you know how to find the circumference of the circle?
Circumference = 2 * pi * r (where r is radius). Circumference goes around the circle for the full 360 degrees. Because the arc only has 40 degrees, you need to find the proportion of the circumference corresponding to 40 degrees.
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