the inner circumference of a circular race track 14 m wide,is 440 m. find the radius of the outer circle.
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PLZ MARK ME BRAINILIST
circumference of inner circular track = 2πr = 440
2\pi \: r = 440 \\ r = \frac{440 \times 7}{22 \times 2} \\ r = \frac{440 \times 7}{44} \\ r = 10 \times 7 = 70
width of circular track = 14 m
radius of outer circular track = radius of inner circular track + 14
= 70 + 14
= 84 m
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radious of outer circle is 84 m
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