If s denotes the length of the arc of a circle of radius r subtended by a central angle 0, find the missing quantity.
r = 14.8 inches, 0 = 315°, s = ?
+1253 The circumference of a circle is 2*pi*r, so the circumference is 29.8pi.
A 315 degree angle is 315/360=7/8 of the way around the circle.
Therefore, the length of s is 29.8pi*7/8=26.075pi, or about 81.917 units.
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