What's the missing side of this triangle

20.25inches

Step-by-step explanation:

Using the Pythagorean theorem,

h^2=7^2 +19^2

h^2=410

h=sqr 410=20.25inches

false

step-by-step explanation:

the reason i say this is because for a certain length of sides you can pick any two and the length is wither equal or greater than the third side and in this case it's not.

3 + 5 = 8

8 is smaller than 9 which is the third side.

hope this : )