The circumferences of two circles are 132 meters and 352 meters. Find the difference between the areas of the larger and the smaller circles? Choose the correct choice from the following answers.
A) 2996 sq m B) 2897 sq m C) 4312 sq m D) 5768 sq m E) 8470 sq m

Rationale: "let the radii of the smaller and the larger circles be s m and l m respectively . 2 ∏ s = 132 and 2 ∏ l = 352 s = 132 / 2 ∏ and l = 352 / 2 ∏ difference between the areas = ∏ l ^ 2 - ∏ s ^ 2 = ∏ { 66 ^ 2 / ∏ ^ 2 - 132 ^ 2 / ∏ ^ 2 } = 66 ^ 2 / ∏ - 132 ^ 2 / ∏ = ( 66 - 132 ) ( 66 + 132 ) / ∏ = ( 110 ) ( 242 ) / ( 22 / 7 ) = 8470 sq m answer : e"
Answer: E