The radius of a circular field is 20 m. Inside it runs a path 5 m wide all around. Find the area of а the path.
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r=20m
22/7×20×20
=1257.14
removing path(20-5=15)
area of circle whithout path
=22/7×15×15=707.14
=(1257.14-707.14)
=550m^2
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