Charlotte Angas Scott (1858-1931) was the first mathematician who taught at the women's college Bryn Mawr in the United States. This Pennsylvania college was the first to offer free university education to women, thus helping many girls to enter the field of mathematics.

One of Charlotte's most important publications was Cartesian Plane Geometry: Analytical Conics.

A conic section is the intersection of a cone and a plane.

Calculate the length of the circumference of radius r = 8 and the area of the corresponding circle.