how to find unknown side

Answer:
C = 10
Step-by-step explanation:
Find the last side of the triangle using the Pythagorean theorem.
[tex]a^{2} +b^{2} =c^{2}[/tex]
You have a and b already, a = 6, b = 8
[tex]6^{2} +8^{2} =c^{2} \\\\[/tex]
solve this to get
[tex]64 + 36 = \sqrt{100}[/tex]
C = 10
Apply the same to the other 2 triangles. C is your longest side!