In a rhombus whose area is 144 sq.cm on of its diagonals is twice as long as the other. The lengths of its diagonals are: _______ ?

The length of one of the diagonals in a rhombus is given by the square root of 2 times the length of the other diagonal. Area of rhombus = 144 sq cm (and not cm as stated in the question). di = 12 cm. One diagonal is 12 cm and the other diagonal is 24 cm