Question

the circumference of a compact disc is 28.26 cm. what is its radius​

Answer 1

Answer:

circumference= 2πr

28.26= 2*22/7*r

28.26/2 = 22/7 r

14.13 =22/7 r

14.13*7/22=r= 4.4959

Answer 2

Answer:

radius, r = 4.5 cm

Step-by-step explanation:

the circumference of a compact disc = 28.26 cm

2\pir = 28.26 cm

r = 28.26

$\frac{?}{?}$

2

$\pi$

r= 28.26

$\frac{?}{?}$

2 ×3.14

r = 28.26/ 6.28

radius, r = 4.5 cm