For a right triangle ABC, how do you find the sine, cosine and tangent of angle A? Trigonometry Right Triangles Basic Trigonometric Functions 1 Answer sankarankalyanam Apr 8, 2018 As below. Explanation: #sin A = "oppo. side " / "hypotenuse" = a / h# #cos A = "adj. side " / "hypotenuse" = b / h# #tan A = "oppo. side " / "adj. side" = a / b# Answer link Related questions What are the 6 basic trigonometric functions? How are the 6 basic trigonometric functions related to right triangles? How are the 6 basic trigonometric functions related to the Unit Circle? What is Sine, Cosine and Tangent? How do you find the Sine, Cosine, or Tangent of an angle? Can you use trigonometric functions for any kind of triangle? If #sin A = 3/5#, what is #sec A#? If #sin A= 1/(sqrt(2))#, what is #cot A/csc A#? How do you write #(sec theta - 1)(sec theta + 1)# in terms of sine and cosine? How do you calculate #cos((3pi)/2)#? See all questions in Basic Trigonometric Functions Impact of this question 33354 views around the world You can reuse this answer Creative Commons License