Sine Values change with the angle
Click and drag the slider of the angle α to any value between 0° and 90°.
(Do NOT change the other two sliders, b and b' )
Choose ten values of the angle (0, 10,20, 30, 40 ... ) and record the values of the angle and the trigonometric ratio sine in a table in desmos. (here: https://www.desmos.com/calculator/g90m5kl0dt)
Can you see a pattern?
Turn on the function of sin(x) is desmos.