a goat is tied with a rope 21m long to a pole. how much area will she graze
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here,r=21
area of circle=
=22/7×21×21
=1386sqm
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πr²
22/7×21/2×21/2( because 21 m is diameter)
=346.5m²
omhiralkar:
hii, 21m is not a diameter. it is radius
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