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

1 Answer

4 votes

Answer:

≈ 6.28 inches

Explanation:

The length of the arc is

arc = circumference × fraction of circle

= 2πr ×
(90)/(360)

= 2π × 4 ×
(1)/(4) = 2π ≈ 6.28 inches


User Rohitashv Singhal
by
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