A circular track is 4.5 cm wide. the inner and outer circumferences are in the ratio 4:7. find the radius of the inner circle
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5
which standard question is this I can't understand this question
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10
Let the inner radius be x m
& the outer radius be x+ 4.5m
therefore according to the question
2piR/2pir=4/7
R/r=4/7
x+4.5/x=4/7
x=......
you can solve further
& the outer radius be x+ 4.5m
therefore according to the question
2piR/2pir=4/7
R/r=4/7
x+4.5/x=4/7
x=......
you can solve further
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