7. A goat is tied to a pole fixed on the side of a
rectangular grassy field of dimensions 60 m
x 30 m by means of a 21 m long rope. Find
the area of the portion of the field that is
grazed by the goat
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Answer:
Area of the portion of the field that is grazed by the goat= π × r^2
=22/7×21×21
=22×3×21
=66×21
=1386m^2
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