Answer:
Step-by-step explanation:
You can answer this using the law of cosines:
[tex]c^2=a^2+b^2-2ab \cos{c}[/tex]
c^2 is equal to 4^2 + 7^2 - 2(4)(7)(cos 102º)
= 16 + 49 - 56(cos 102º)
c^2 ~ 76.64 --> c ~ 8.8
