A running track is the ring formed by two concentric circles. it is 10 feet wide the circumference of the two circles differ by about _____ feet
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nce the circumference of a circle is calculated as  where  is the radius, we know that the circumference of the smaller circle is  and the circumference of the larger circle is .
The difference between the circumferences is .
The difference between the circumferences is .
bimal95:
plz correct as brainlist
options are a-10 b-30 c-60 d-100
c -60
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Answer:
60
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