2x+2y+2z = 10.44+6.29+7.27 = 24，

x+y+z=2/24= 12，

z = 12- 10.44 = 1.56

y= 12-7.27=4.73

x= 12-6.29=5.7 1

Answer: O is 5.7 1, delta is 4.73, and mouth is 1.56.