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

Find the arc length of a central angle of 90° in a circle whose radius is 4 inches
asked 132k views
1 vote
Find the arc length of a central angle of 90° in a circle whose radius is 4 inches

asked
User MindWire
by
8.0k points

2 Answers

7 votes

Answer:

2 pie in

source: Trust me bro

answered
User Dalibor Filus
by
8.3k points
5 votes
this is 1/4 * circumference
Circumference = 2 * pi * 4 = 8pi

arc length = 1/4 * 8pi = 2pi or 6.28 ins to nearest hundredth.
answered
User Populus
by
8.2k points
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