A cattle is tied to a fixed pole on the corner of a rectangular grassy field of 60m×30m by means of 21 m long rope.find: (a) the area portion of the field that is graszed by the cattle. (b) find the grazed area ,if the pole is fixed to the mid point of the length of the field.
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the area grazed=quarter of a circle of radius 21m
area grazed=1/4×22/7×21^2
1/4×22/7×441
1/4×22×63
(11×63)÷2
693/2
346.5m^2
area when cattle is tied at centre
22/7×21^2
22/7×441
22×63
1386 m^2
area grazed=1/4×22/7×21^2
1/4×22/7×441
1/4×22×63
(11×63)÷2
693/2
346.5m^2
area when cattle is tied at centre
22/7×21^2
22/7×441
22×63
1386 m^2
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