Question

find the circumference of the circle whose radius is 12 cm

Answer 1

Hey!

r = 12 cm

C = 2πr
    = 2 × 12 × 3.14
    = 24 × 3.14
    = 75.36 cm^2

So, the answer is 75.36 cm^2 or centimeter square..

Hope it helps^^

Answer 2

Given: The radius of the circle is$12cm$.

We have to find the circumference of the circle.

As we know that the circumference of the circle is calculated by a formula:

$C=2\pi r$

where,

C = circumference of the circle

r = radius of the circle

We are solving in the following way:

We have,

The radius of the circle is$12cm$.

So, the circumference of the circle will be:

$C=2\pi r$

$=> C=2\times \frac{22}{7} \times 12\\\\=>C=\frac{44}{7} \times12\\\\=>C=\frac{528}{7}$

Hence, the circumference of the circle will be $\frac{528}{7}$cm.