if the radius of circle is 7/square root2 then.find perimeter of circle?
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=2×(22/7)×7root2
=44root2
=44root2
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radius = r = 7/root2
perimeter of a circle = 2* pi*r
= 2* pi* 7/ root2
= 7* root 2* pi units
perimeter of a circle = 2* pi*r
= 2* pi* 7/ root2
= 7* root 2* pi units
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