No.
Some of the classic curves studied by mathematicians: ellipses, hyperbola are cross sections of a cone taken at an angle.
Chat with our AI personalities
When a sphere is cut with a vertical angled plane, the cross-section will be an ellipse. If the sphere is then cut by a horizontal plane, the cross-section will be a circle. Thus, the combination of these two cuts results in an elliptical cross-section from the angled cut and circular cross-sections from the horizontal cuts at various heights.
If horizontal, a circle. If vertical, a semi-circle.
The vertical cross sections are trapezia or triangles. The horizontal cross sections are rectangles which are mathematically similar to the base.
It is a rectangle which is similar to the base.
Christian Cross: 1 - Vertical symmetry Maltese Cross: 4 - Vertical, Horizontal and two diagonals