# Ellipses Inscribed In A Circle

## Description

Illustration of concentric ellipses, whose major axes are vertical, inscribed in a circle whose diameter is equal to the length of the major axes of the ellipses. The ellipses, which decrease in width in equal increments until the smallest one is a line, are externally tangent to the circle. The illustration could be described as a circle rotated about the poles of the vertical axis. It could also be used as a 3-dimensional drawing of a sphere.

## Keywords

3-dimensional drawing, circle, circles, circumscribed, concentric, degenerate conic, eccentricity of an ellipse, ellipse, ellipses, inscribed, oval, ovals, reflect, reflection, reflective, rotated about poles, sphere, symmetric, symmetry, tangent

## Galleries

## Source:

Florida Center for Instructional Technology *Clipart ETC* (Tampa: University of South Florida, 2007)