Question

The circumference of a circle is 6.28mm. What is the circle's radius

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Radius is 1 mm.

Step-by-step explanation:

Given -

Circumference of circle is 6.28 mm

To find -

The radius of circle

Solution -

As we know that,

Circumference of circle = $2 \times pi \times r$

Where,

r is radius of circle.

Put the given values in these formula we get

$6.28 = 2\pi \times r$

$\frac{6.28}{2\pi}  = r$

$\frac{3.14}{\pi}  = r$

The value of π is 3.14 .

$\frac{3.14}{3.14}  = r$

$r = 1$

So,

Radius is 1 mm.