The circumferences of two circle are 132 metres and 176 metres respec…

Question

The circumferences of two circle are 132 metres and 176 metres respectively. What is the difference between the area of the larger circle and the smaller circle ?

Accepted Answer

Option C. 1078 m 2. Answer & Solution Answer: Option C Solution: & 2 R_1 = 132 & R_1 = 132 × 72 × 22 & R_1 = 21\,m & 2 R_2 = 176 & R_2 = 176 × 72 × 22 & R_2 = 28\,m & Required difference : & = ( R_2^2 - R_2^2 ) & = ( R_2 + R_1 ) ( R_2 - R_1 ) & = ( 227 × 49 × 7 )m^2 & = 1078\,m^2