when area of circle increased by 100%,area of the circle increased by?
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twice................................
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when area of circle increased by 100% , area of circle increased by 100%.
PS: your question seems bullsh!t. Something wrong in it I suppose.
If you meant to say the radius increased by 100% then
old radius = r
area = pi * r^2
new radius = 2r
new area = pi * (2r)^2 = pi * 4r^2
so area increases by 4 times or 400%
PS: your question seems bullsh!t. Something wrong in it I suppose.
If you meant to say the radius increased by 100% then
old radius = r
area = pi * r^2
new radius = 2r
new area = pi * (2r)^2 = pi * 4r^2
so area increases by 4 times or 400%
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