A rope by which a cow is tethered is increased from 16m to 23m . How much additional ground does it have now to graze ?
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1
Answer:
Correct option is
C
858 m
2
Given that, a rope by which a cow is tethered is increased from 16 m to 23 m
To find out: The additional area that the cow can graze now
We know that area of a circle of radius r=πr
2
∴ Additional ground area =π((23)
2
−(16)
2
)
⇒
7
22
(529−256)[∵ π=
7
22
]
⇒
7
22
(273)
=858 m
2
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