the radius of the two circular fields is in the ratio 3 : 5 the area of the first field is what percent less than the area of the second ?
"r = 3 π r 2 = 9 r = 5 π r 2 = 25 25 π – 16 π 100 - - - - ? = > 64 % answer : d"
subtract(power(5, const_2), power(3, const_2))