Question

what is diameter of a circle having radius 9c

















m​

Answer 1

Step-by-step explanation:

Radius 4.5 cm. = 2 x 4.5 cm. = 9 cm. Therefore,

diameter = 9 cm.

Answer 2

$\huge\bold\red{Answer}$

$The \: area \: of \: a \: circle \: with \: diameter  \: 9 \: is 63.62Formulae:r = 4.5 d = 9 C = 28.3A = πr2 = π(d2)2 A = C24π π = 3.1415 A = area C = circumference \: or \: perimeter \: r \: = \: radius, \: d \: =diameter.$