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i dont understand this question can someone help me plz
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c 40
coz if u use this pir^2/2pir = 20 and then u cancel it u get r/2=20 then r=40
the formulas for finding area and circumference
do u get it?
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no
how did u get the radius
well in the question the area which is M we can write as \[\pi\]r^2 and then N is the circumference and we know that the formula is 2\[\pi\]r right?
why can we write m as pi is it not the area?
it is i wrote pir^2 but i dnt no y wen i post it , it didnt turn out rite
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/what do we get if we divide a circles area by its circumfrence
if we divide the formulas we get r/2
i am confused
|dw:1314307853571:dw|
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