how to find angles of a triangle

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Elysi Cochin 2018 年 3 月 3 日

コメント済み: Jan 2018 年 3 月 5 日

If i know the values of (xi,yi), (xj,yj) and (xu,yu)

how to find the angle thetai and thetaj

KALYAN ACHARJYA 2018 年 3 月 3 日

To find the angle, please follow the following attached figure-

Elysi Cochin 2018 年 3 月 3 日

what is |A| and |B|

Jan 2018 年 3 月 5 日

@Elysi: The lengths of A and B. Did you learn something about trigonometry in school? See https://en.wikipedia.org/wiki/Trigonometry

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