My understanding so far.
Sine represents a ratio of two sides of an interior angle within a right angle triangle. So given the three lengths of a triangle you can find the sine of any of the 3 interior angles.
Also if you are given the actual angle of an interior angle, you can get the sine using a calculator.
Thus, I deduce from these two statements that on a right triangle any interior angle of a specific number represents a constant raio, whatever the area of the triangle.
I can visualize that in my head to a certain extent, scaling the triangles sides equally, increases the area of the triangle but not the ratio of the sides.
But I'm wondering if I'm missing anything in terms of intuition around this?