2 years ago

Please help I dont understand

1 answer:

7 0

Answer:

2.1

Step-by-step explanation:

By the Law of Cosines,

a² = 5² + 6² - 2(5)(6)cos(20°)

a = sqrt(5² + 6² - 2(5)(6)cos(20°)), which is about 2.1

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