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An outside circular ring has a circumference of 100 cm. What is the circumference of an inner ring which is 5 cm shorter in radius? Both circles have the same center.
one circle inside another sharing the same center
20.0 cm
31.8 cm
56.8 cm
68.6 cm An outside circular ring has a circumference of 100 cm. What is the circumference of an inner ring which is 5 cm shorter in radius? Both circles have the same center.
one circle inside another sharing the same center
20.0 cm
31.8 cm
56.8 cm
68.6 cm @Mathematics
 2 years ago
 2 years ago
An outside circular ring has a circumference of 100 cm. What is the circumference of an inner ring which is 5 cm shorter in radius? Both circles have the same center. one circle inside another sharing the same center 20.0 cm 31.8 cm 56.8 cm 68.6 cm An outside circular ring has a circumference of 100 cm. What is the circumference of an inner ring which is 5 cm shorter in radius? Both circles have the same center. one circle inside another sharing the same center 20.0 cm 31.8 cm 56.8 cm 68.6 cm @Mathematics
 2 years ago
 2 years ago

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hoblosBest ResponseYou've already chosen the best response.2
is there any formula for circumference?
 2 years ago

kiss69fist23Best ResponseYou've already chosen the best response.1
if there is i dont kno it haha :/ sad...but true
 2 years ago

kiss69fist23Best ResponseYou've already chosen the best response.1
i can always count on dear shabeer to save tha day haha
 2 years ago

hoblosBest ResponseYou've already chosen the best response.2
abdul shabeer is there any formula??
 2 years ago

abdul_shabeerBest ResponseYou've already chosen the best response.3
Are the options rounded off ? I got the answer as 68.57142 still more
 2 years ago

abdul_shabeerBest ResponseYou've already chosen the best response.3
Circumference of circle = \[2*\Pi*r\]
 2 years ago
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