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Question

A horse is placed for grazing inside a rectangular field 40 m by 36 m and is tethered to one corner by a rope 14 m long. Over how much area can it graze? (Take π = 22/7)

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Solution

It is given that a horse is tethered to one corner of a rectangular field (40 m × 36 m) by a 14 m long rope.

Let r m be the radius of a circle. Then area A of circle is

A=πr2 m2=227×14×14 m2=616 m2

Since the horse can graze inside the rectangular field only, the required area is quadrant of circle. So,

Required area=A4=6164=154 m2

Hence the horse can graze 154 m2 area.


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