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WARRIOR [948]
3 years ago
13

Find the arc length of a central angle of 90° in a circle whose radius is 4 inches

Mathematics
1 answer:
Pani-rosa [81]3 years ago
7 0
This is 1/4 * circumference
Circumference = 2 * pi * 4 = 8pi

arc length = 1/4  * 8pi = 2pi  or 6.28 ins to nearest hundredth.
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