What is the circumference of this circle, in centimeters? Use 22/7 for pi
d = 21 cm

33
66
207.4
346.5

66 cm

Step-by-step explanation:

formula for the circumference of a circle :

2πr

where r is the radius

radius  = diameter/2

            =  21 / 2

use the formula :

2π*10.5

2 * 22/7 * 10.5

=65.97

to 2sf

66

Step-by-step explanation:

Circumference = 2πr

radius = half of diameter

= 10.5

circumference = 2(22/7)(10.5)

= 66

k

step-by-step explanation:

domit

brandon has 4344 video games.  

step-by-step explanation

7373 - 2929 = 4344

pls let me know if it was correct