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Three horses are tied at 3 corners of a triangular plot having sides 20 m, 30 m and 40 m

with ropes of 7 m length each. Find the area where the horses can graze.




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Let the area of ground grazed by the 3 horses be sectors of 7 cm radius each nd their central angle be x y n z Now area of 3 sectors =(x/360×πr²+y/360×πr²+z/360×πr²) =πr²(180/360) (bcos sum of all angles of a triangle is 180) =22/7×7²(1/2) =22×7(1/2) =77 cm²
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