Question

the circumference of a circle is eight times the circumference of the circle with radius 12cm. Find its Diameter.

Answer 1

.,......hope it helped

Answer 2

Hii !!




Circumference of circle with Radius 12 cm = 2πR = 2 × 22/7 × 12 = 75.4 cm [ Approx ]








Let radius of another circle be X.





Therefore,


Circumference of another circle = 2πR = 2πX cm.



According to the question,



Circumference of another circle = 8 ( Circumference of circle with Radius 12 cm ).




2πX = 8 ( 75.4 )



2πX = 603.42



2 × 22/7 × X = 603.42





X = ( 603.42 × 7 ) / ( 44 )



X = 96 cm.



Radius of another circle = X = 96 cm.


Therefore,

Diameter of another circle = 2 × R = 96 × 2 = 192 cm.