OA = 5x
OB = 9x
AB = OB - OA = 9x - 5x = 4x
AB по условию = 8
4x = 8
x = 2
OA = 5x = 5 * 2 = 10
OB = 9x = 9 * 2 = 18
OA = 5x
OB = 9x
AB = OB - OA = 9x - 5x = 4x
AB по условию = 8
4x = 8
x = 2
OA = 5x = 5 * 2 = 10
OB = 9x = 9 * 2 = 18