tangent(54) is about 0.673800101
0.813
tan (30 degrees) would be equal to 0.577350269.
tan(1) = 1.5574 where the angle is measured in radians.
If B is 90 degrees, Tan A is BC / AB. But I don't know what you mean by Tan A by 2.
tangent(54) is about 0.673800101
Tan 42 degrees = 0.9004
tan(22.5)=0.414213562
tan(61°) = 1.80405 (rounded)
0.26794919243112270647255365849413
2.41
0.7
0.813
tan(135 degrees) = negative 1.
tan(-60 degrees) = - sqrt(3)
tan(58.5) = 1.63185 (rounded)
tan (30 degrees) would be equal to 0.577350269.