Given that:
a is 12
b is 13
c is 6
Find the value of Angle A?
2009-01-24 10:33 pm
回答 (2)
2009-01-24 10:56 pm
✔ 最佳答案
i assume you are looking for an angle from a triangle ABC:By using the cos law,
a^2=b^2+c^2-2abcosA
You can find angle A by substituting those given numbers:
144=169+36-2(13)(6)*cosA
2009-01-25 6:38 am
Do sin of angle A=12/13.
收錄日期: 2021-04-19 13:23:17
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