Hey guys.. if 20metre wire is available for fencing off a flower bed in the form of circular sector. Then what will be the maximum area of flower bed.??
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Sector of a circle = 2l+r
2r+l = 20 ; l= 20 -2r
Area = 1/2lr = 1/2*(20-2r)*r = 10r-r^2
Differenciation: dA/dX= 10 -2r
10-2r=0
hence r= 5
I hope this would b helpful for u.....
2r+l = 20 ; l= 20 -2r
Area = 1/2lr = 1/2*(20-2r)*r = 10r-r^2
Differenciation: dA/dX= 10 -2r
10-2r=0
hence r= 5
I hope this would b helpful for u.....
Answered by
2
Hope it will help you my friend
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