cjrocks0909 cjrocks0909

11-07-2019
Mathematics

contestada

In triangle ABC, a = 3, b = 5, and c = 7. Find the approximate value of angle A. 22° 38° 142° 158°

Respuesta :

hammepre000 hammepre000

21-01-2021

Answer:

B.

Step-by-step explanation:

B.

Answer Link

christian5848 christian5848

18-02-2022

Answer:

22

Step-by-step explanation:

law cosines

a^2=b^2+c^2 - 2bc cos A

plug in numbers

21.7 ish

round

22

Answer Link

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