Use a unit circle and 30°-60°-90° triangles to find the degree measures of the angle.

Question

angles whose tangent is 

Answer 1

sin(30) = 1/2

sin(60) = √3 / 2

sin(90) = 1

cos(30) = √3 / 2

cos(60) = 1/2

cos(90) = 0

tanθ = sinθ / cosθ

tan(60) = sin(60) / cos(60) = (√3 / 2) / (1/2) = √3