Question

Find the arc length of AC. Express your answer in terms of pi.

Thanks for the help!​

Answer 1

AC = 3 π

Explanation:

given dia of a circle = 36 cm

radius r = 36 / 2 = 18

angle Ф = 30°

req'd: Arc length of a circle AC.

Ф

arc length = ----------- x 2 π r

360

30°

AC = --------- x 2 π (18)

360

AC = 3 π

Answer 2

3 pi is the answer.

Explanation:

Circumference = pi * d

1/12 = 30/360 = You need to find 30 degrees

Known:

D = 36

1/12 = percentage

Unknown:

Answer = ?

1/12 * pi * d

= 1/12 * pi * 36

= 1/12 * 36 * pi

= 3 pi

The answer is 3 pi.

Hope this helped,

Kavitha