The circle has coordinates around the circle, Sin and cos tell you those coordinates depending on the angle or the radius. So when the circle is at the top, the x is in the middle, so 0, and the y is at the top, so 100. The degree is 0° because of scratch, but it would normally be 90. So when the degree is 0°, cos of 0 = 0, sin of 0 = 100. Though I might be getting this confused and actually it’s 90° is 0 x and 100 y, idk..