My answer was wrong, I'm am very sorry
Answer:
10.8 cm
Step-by-step explanation:
Using cosine law
g² = 7.1² + 6.7² - 2(7.1)(6.7)cos(103)
g² = 116.7018433
g = 10.80286274
the answer is A
do I have to explain?
A
Answer:9+2<17
