the sum of the diameter and circumference of a circular field is 406 metre. find its radius
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Answer:
d + 2pie x r = 406
Step-by-step explanation:
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Diameter + circumference = 406 m
2r + 2 pi r = 406
2r( 1+ pi) = 406
2r( 1+ 22/7 ) = 406
2r ( 29/7 ) = 406
2r = 406 x 7/29
2r = 14 x 7
r = 98/2
r = 49
Thus, the radius of the circle is 49m
2r + 2 pi r = 406
2r( 1+ pi) = 406
2r( 1+ 22/7 ) = 406
2r ( 29/7 ) = 406
2r = 406 x 7/29
2r = 14 x 7
r = 98/2
r = 49
Thus, the radius of the circle is 49m
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