I need help on finding Tangent 9/2/2013 | Jamie from Lumberton, MS | 2 Answers | 0 Votes Mark favorite Subscribe Comment
Sin A = opposite side/ Hypotenuse = 4/9 You know in right triangle one leg = 4, hypotenuse _____ ___ Hypotenuse = sqrt( 9^{2}-4^{2)}^{ = Sqrt (65 ) = 8.06} 9/3/2013 | Parviz F. Comment
Since sin x = opp/hyp, we have opp = 4 hyp = 9 adj = sqrt(9^2-4^2) = sqrt(65) tan x = +/- adj/hyp = +/- sqrt(65)/4, where "+" for the tan x in the first quadrant, and "-" in the second quadrant. 9/2/2013 | Robert J. Comment