Trigonometry Missing angles 2.0 / 5 based on 1 rating ? MathematicsTrigonometryGCSEEdexcel Created by: Pixie~Flirt (:Created on: 21-09-12 17:37 Sin, Cos and Tan 1 of 7 Missing Angles (Cos) cos(a) = 7.3/0.8 a = cos (7.3/9.8) 2 of 7 Missing Angles (Tan) tan(c) = 9.4/4.3 c = tan (9.4/4.3) 3 of 7 Missing Angles (Sin) sin(a) = 3/11 a = sin (3/11) 4 of 7 Missing Angle Problem A step ladder can only be safely climbed if the angle of elevation to the ground is 75 How far away from a wall must the ladder be to safely reach 3m above the ground tan(75) = 3/? ? = 3/tan(75) 5 of 7 Missing Sides (Sin) 1 sin26 = a/12 (sin26) * 12 = a 6 of 7 Missing Sides (Sin) 2 sin70 = 32/h h = 32/sin70 7 of 7
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