Read the caption please, thank u so much!!!

Answer:
[tex]\huge\boxed{\sf S = 8}[/tex]
Step-by-step explanation:
Opposite sides and angles of a ║gm are equal.
So,
6S - 8 = 3S + 16
6S - 3S = 16 + 8
3S = 24
Divide 3 to both sides
S = 24 / 3
S = 8
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!