6 centilitre = 60 millilitre
Total liquid consumed = 355ml + 60ml = 415 mlillilitres
start by writing the multiplication in this form
start multiplying from right to left.

write the first number down
continue by multiplying the next number from right to left

write the number down, since there are no more numbers to multiply for write the wole number
this means that
Know that:
sin(β)=Opposite/Hypotenuse
Therefore:
sin(54)=x/10
Therefore:
x=10*sin(54)
x=8.1 (To the nearest tenth)