Two parallel lines touch the circle at point A and B respectively. If area of the circle is $36 π c m^{2}$ , then find the length of AB

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Solution

Area of circle $= π r^{2} = 36 π$
$\Rightarrow r^{2} = 36$
$\Rightarrow r = 6$ cm
$A B = 2 r = 12$ cm.

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Two parallel lines touch the circle at point A and B respectively. If area of the circle is 36π cm2, then find the length of AB

Area of circle=πr2=36π⇒r2=36⇒r=6cmAB=2r=12cm.

Two parallel lines touch the circle at point A and B respectively. If area of the circle is $36 π c m^{2}$ , then find the length of AB

Area of circle $= π r^{2} = 36 π$
$\Rightarrow r^{2} = 36$
$\Rightarrow r = 6$ cm
$A B = 2 r = 12$ cm.