Question

find diameter of circle whose radius is 9
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Answer 1

Answer:

Diameter = 2R

(D) = 2R

D = 2×9

D = 18

Answer 2

Answer:

18

Step-by-step explanation:

we know that the radius is half than dimeter

$r = \frac{d}{2}$

$9 = \frac{d}{2}$

$d = 9 \times 2$

$dimeter \: is \: 18$