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kiss69fist23
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
is there any formula for circumference?
if there is i dont kno it haha :/ sad...but true
i can always count on dear shabeer to save tha day haha
abdul shabeer is there any formula??
Are the options rounded off ? I got the answer as 68.57142 still more
Circumference of circle = \[2*\Pi*r\]