PLLLLEEEAAAASSSSSEEEE HELP!

asked Dec 5, 2020 196k views

2 votes

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5 votes

Answer:

see explanation

Explanation:

The length of the arc is calculated as

arc = circumference of circle × fraction of circle

= 2πr ×
(90)/(360) ← r = 1

= 2π ×
(1)/(4) =
$(\pi )/(2)$ ≈
(3.14)/(2) = 1.57

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