Ellipse and circumscribed/inscribed circle: radius

In this publication, we will consider what the radius described about and inscribed in the figure is. The information is accompanied by drawings for better understanding.

Content

Finding the radius

Circumscribed circle

Ellipse and circumscribed/inscribed circle: radius

Radius (R) the circumscribed circle about the ellipse is equal to the length of its semi-major axis (a), ie R = a.

Inscribed circle

Ellipse and circumscribed/inscribed circle: radius

Radius (r) the circle inscribed in the ellipse is equal to the length of its minor semiaxis (b), ie r = b.

Leave a Reply