Question

circumference of circle is 66 cm what is its radius

Answer 1

2*22/7*r=66
r=3cm. ............

Answer 2

circumference of a circle is 66 cm
formula of a circumference of circle is
=
$2\pi \: r$
now putting the value of a circumstances of a circle then we get
2 × 22 / 7 × r
44 / 7 × r
44 / 7 × r = 66
r = 66 × 7 / 44
r = 462 / 44
r = 10.5 cm answer
please mark as brainlist an follow me