I think it would be the one from paragraph 4, it shows laura has overheard what they were talking about and her mood changes and feels hurt
One of my favourite k-drama is 365: Repeat the Year
Cylinder Volume = pi × r² × h
r = radius
h = hight
Volume = 54 pi (given)
r = 3 , r² = 9
54 pi = pi × r² × h
54 = 9 × h
h = 6 cm
