a racetrack is in the form of a ring whose inner circumference is 528 m and the outer circumference is 616 m. find the width of the trackm
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Step-by-step explanation:
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Answer:
width = 14m
Step-by-step explanation:
inner circumfrence = 528m
2πr = 528
πr= 528/2 = 264 (1)
outer circumference = 616
2πR = 616
πR= 616/2= 308 (2)
subtract eqn 1 from2
πR = 308
-πr = 264
________
πR-πr = 308-264
π(R-r) = 44
(R-r) I = 44*1/π
R-r = 44 * 1/22/7
R-r = 44*7/22
R-r = 14m
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