Answer:
So we are given a triangle with a length of 9, 12, and 15. I will assume the angle that we need to find the sin cos and tan of will be the one closest to the origin.
sin = 9/15
cos = 12/15
tan = 9/12
And the measurement of each angle 36.87, 53.13, and 90. (in degrees)
In radians 0.6435, 0.9273 and 1.5708
Explanation: