(Those who will answer fast will be marked as brainliest) A circular lawn surrounding a circular piece of land is uniformly 7 m wide and its inner edge is 484 m. Calculate the radius of the inner circle and the area of the lawn. (Steps to be shown) (Please answer it fast as it is very urgent!!!)
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inner edge =484
therefore it is the circumference of inner circle
then let r be the radius
therefore 2Πr=484
r=484/(2*3.14) =484/6.28 = 77.07= 77m
since 7 m is the width of circular land therefore
now area of lawn is =Π(r+7)^2
= 3.14*(77+7)(77+7)=(22/7)(84)(84)
=22*12*84=22176sq.m
therefore it is the circumference of inner circle
then let r be the radius
therefore 2Πr=484
r=484/(2*3.14) =484/6.28 = 77.07= 77m
since 7 m is the width of circular land therefore
now area of lawn is =Π(r+7)^2
= 3.14*(77+7)(77+7)=(22/7)(84)(84)
=22*12*84=22176sq.m
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