Question

what is the circumference of a circle of a diameter 63cm. write with equations​

Answer 1

Answer:

197.920 cm

Step-by-step explanation:

Given,

Diameter of the circle is 63 cm

∴Radius of the circle is 63/2 cm

We know,

Circumference of a circle= 2πr

∴ Circumference of the given circle= 2*3.1416*(63/2)

                                                          = 197.920 cm

Answer 2

Step-by-step explanation:

d=63cm

r=63/2 =31.5

circumference=

$2 \: \pi \: r$

$2 \times \frac{22}{7} \times 31.5$

=198cm

hope this helps you:)