I have 1: a right angled triangle, 2: an isosceles triangle, 3: a rectangle, 4: a parallelogram, and 5 a trapezium in the 2D picture which I am rotating about the red axis next to them.
They produce three dimensional circular shapes, some of which I cannot recognize and name. I was able to identify the 1: cone, 2: ?, 3: cylinder, 4: ?, 5: ?
2 is possible a spinning top, but i am not certain. Are there mathematical names for these shapes, if so what are they called? Thanks!