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lorasvet [3.4K]
2 years ago
14

Find the circumference of the circle with the given radius or diameter. (Use 3.14 for it) r=20

Mathematics
2 answers:
Margarita [4]2 years ago
6 0

Answer:

\huge\boxed{C\approx125.6}

Step-by-step explanation:

The formula of a circumference of a circle:

C=d\pi=2\pi r

<em>d</em><em> - diameter</em>

<em>r</em><em> - radius</em>

We have the radius <em>r = 20</em>.

Substitute:

C=2\pi(20)=40\pi

use π ≈ 3.14

C\approx(40)(3.14)=125.6

iogann1982 [59]2 years ago
4 0

Answer:

C = 2πr = 2 * 3.14 * 20 = 125.6

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