Question

The radius of a circle is 4 cm then find the circumference.​

Answer 1

Answer:

25. 142cm.

Step-by-step explanation:

Because the formula of finding the circumference is 2×22/7×r

2×22/7×4.

=44/7×4

=176/7

=25.142cm.

So circumference is 25.142.

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Answer 2

Answer:

$8\pi = 25.12$

Step-by-step explanation:

Circumference of circle =

$2\pi \: r$

so

$2 \times \pi \times 4 \\ 8\pi \\ 8 \times 3.14 \\ 25.12$

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