Answer:
The height of glass 1 is 7.6 cm.
Step-by-step explanation:
We can see that glass 1 is a cylinder whose volume is given by :

its r = 
h = ?
The second glass is a cone with h = 6.3 and r = 
Volume is given as :

=>
V = 26.38 cubic cm
Given is :
The total amount of water that Celia poured into the glasses is 80 cubic centimeters.
This means she poured
cubic cm of water in cylindrical glass. Solving for 'h'


h = 7.6 cm
Therefore, the height of glass 1 is 7.6 cm.