plz help me in 9, 10,11 plz plz it is urgent
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9.
let the rope length be the radius of circle which is covered by the cow.so the area covered by cow is A=π(14)^2
A=196π sq.ft
cow takes 1 day to graze 100 sq.ft
time taken to graze 196π sq.ft. is
196π/100 =6.15 days
let the rope length be the radius of circle which is covered by the cow.so the area covered by cow is A=π(14)^2
A=196π sq.ft
cow takes 1 day to graze 100 sq.ft
time taken to graze 196π sq.ft. is
196π/100 =6.15 days
preeti4485:
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tq
1 revolution = 2πr m and 113 revolution= 2.26 km ( 2+0.26)=2260 m
solving for d=2r we get d=3.182686
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