ratio of radii of 2 circles is 8:15 find the ratio of their circumference
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Solution :
Let r , R are two radii of two circles ,
r : R = 8 : 15 [ Given ]
=> ( r /R ) = 8/15 ----( 1 )
Ratio of circumstances = ( 2πr )/( 2πR )
= ( r / R )
= 8 : 15 [ from ( 1 ) ]
Therefore ,
Ratio of circumstances = ( 2πr )/( 2πR )
••••
Let r , R are two radii of two circles ,
r : R = 8 : 15 [ Given ]
=> ( r /R ) = 8/15 ----( 1 )
Ratio of circumstances = ( 2πr )/( 2πR )
= ( r / R )
= 8 : 15 [ from ( 1 ) ]
Therefore ,
Ratio of circumstances = ( 2πr )/( 2πR )
••••
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