In the ABC triangle, the angle c is 90 degrees. AB = 6, cosB = √3 / 2. Find the AC.

univerkov | December 1, 2020 | education

draw a triangle ABC with a right angle C and note in the figure that AB is 6
decision:
cosB = CB / AB CB / AB = root of 3 by 2 CB / 6 = √3 / 2
SV = 3√3
AC = √36 – 27
AC = √9
AC = 3

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