If the radius of a circle increases by 1 / 5, its area will increase by 88 square decimeters Very urgent! There is a prize for correct answer Double reward for the right person

If the radius of a circle increases by 1 / 5, its area will increase by 88 square decimeters Very urgent! There is a prize for correct answer Double reward for the right person

Let the original radius be X
Then the radius is (1 + 1 / 5) x = (6 / 5) X
π[(6/5)x]²-πx²=88
(36/25)πx²-πx²=88
πx²=200
Original area = 200 square decimeters

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