[هنـــــــودة ^_^]

^

حجم الكرة = 4/3 ط نق3

the volume of circle = 4/3 x 3.14 x 185.1
the volume of the inner = 773.7 g

the volume of circle = 4/3 x 3.14 x 190.1
the volume of the outer = 794.6 g


then the inner radius + the outer radius
773.7 + 794.6 = 1568.3

mass = density X volume
mass = 8.93 X 1568.3 = 14004.9


Is it correct ? plzzzzz tell me