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AysviL [449]
3 years ago
7

I have to methods of doing these and neither are right.

Mathematics
2 answers:
iragen [17]3 years ago
8 0

Answer:

arc length AB = 3π

Step-by-step explanation:

arc angle = 20°

which represents 20/360 of the circumference

arc length = (20/360) x 2πr

= (20/360) x 2 x π x 27

= 3π

Slav-nsk [51]3 years ago
3 0

Answer:

3π

Step-by-step explanation:

Your first answer is correct, but it is not in terms of pi.

20 / 360 = x / (2π • 27)

20 / 360 = x / (54π)

360 x = 1080π

x = 3π ≈ 9.4

Your second method is correct, but you accidentally wrote 1/8 instead of 1/18 when you simplified 20/360.

2π • 27 • 20/360

2π • 27 • 1/18

54π • 1/18

3π

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