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Sindrei [870]
3 years ago
13

HELP HELP HELP HELP BEEN STUCK FOREVERRR

Mathematics
1 answer:
elena-s [515]3 years ago
5 0

Answer:

r ≈ 31.5 cm

Step-by-step explanation:

The arc of a circle is calculated as

arc = circumference of circle × fraction of circle

Here arc = 22 , then

2πr × \frac{40}{360} = 22

2πr × \frac{1}{9} = 22 ( multiply both sides by 9 to clear the fraction )

2πr = 198 ( divide both sides by 2π )

r = \frac{198}{2\pi } ≈ 31.5 cm

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