Find the values of the six trigonometric functions of an angle in standard position if the point with coordinates (12, 5) lies on its terminal side?

Question

Please explain how!

Answer 1

if the hypotenuse is at (12,5), the hypotenuse is length 13:

sinθ = 5/13
cosθ = 12/13
tanθ = 5/12
secθ = 1/cosθ = 13/12
cscθ = 1/sinθ = 13/5
cotθ = 1/tanθ = 12/5