Home Mathematics How many feet of monkey grass would you need to go around a circular flower bed if you know that the How many feet of monkey grass would you need to go around a circular flower bed if you know that theMathematics WeirdojuwinOctober 22, 20214 CommentsHow many feet of monkey grass would you need to go around a circular flower bed if you know that the area is 36π ft2?
A=pr^2 and C=2prSolving for r in area gives you:r=√(A/p), and using this in the circumference equation gives you:C=2p√(A/p)C=√((4Ap^2)/(p))C=√(4Ap) ft, now given that A=36p:C=√(144p^2) ftC=12p ftReply
A=pr^2 and C=2pr
Solving for r in area gives you:
r=√(A/p), and using this in the circumference equation gives you:
C=2p√(A/p)
C=√((4Ap^2)/(p))
C=√(4Ap) ft, now given that A=36p:
C=√(144p^2) ft
C=12p ft
Work out the perimeter
36 pi = pi r^2
so r^2 = 36 and r = 6
perimeter = 2 pi r = 12 pi ft
12π ft would be the answer
12
Step-by-step explanation:
no explanation just did the math in my head