Question

find diameter of the circle with radius of 9​

Answer 1

Answer:

diameter =2×radius

diameter =2×9

diameter =18

Step-by-step explanation:

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Answer 2

Answer:

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$\boxed{\fcolorbox{black}{pink}{Given! }}$

• radius = 9cm

$\setlength{\unitlength}{1cm}\begin{picture}(0,0)\thicklines\qbezier(2.3,0)(2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,2.121)(0,2.3)\qbezier(-2.3,0)(-2.121,-2.121)(0,-2.3)\qbezier(2.3,0)(2.121,-2.121)(-0,-2.3)\put(0,0){\line(1,0){2.3}}\put(0.5,0.3){\bf\large 9cm}\end{picture}$

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• Diameter

$\boxed{\fcolorbox{black}{pink}{Remember }}$

• Diameter is twice of radius whereas radius is half of circle.

$\boxed{\fcolorbox{black}{pink}{Formula}}$

D = 2 x r

D= 2x 9

D= 18cm