how to find angles of a triangle

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Elysi Cochin el 3 de Mzo. de 2018

Comentada: Jan el 5 de Mzo. de 2018

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

how to find the angle thetai and thetaj

KALYAN ACHARJYA el 3 de Mzo. de 2018

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

Elysi Cochin el 3 de Mzo. de 2018

what is |A| and |B|

Jan el 5 de Mzo. de 2018

@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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