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2 years ago

11

HELP PLEASE!! URGENT!!

1 answer:

Ugo [173]2 years ago

5 0

Answer:

Step-by-step explanation:

You can answer this using the law of cosines:

$c^2=a^2+b^2-2ab \cos{c}$

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

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