[Greg McKaskle]

I'm not following the approach you've laid out. Are you trying to determine the distance to the target, the height of the target, or the location of the robot on the field?

To review, sin(theta) is equal to (side opposite theta)/hypotenuse. This is of course only true for right triangles.

Can you draw a sketch showing the triangle and labeling what the points of the triangle correspond to?

Greg McKaskle