What is the eccentricity of an ellipse

The video tutorial explains the concept of eccentricity in ellipses, focusing on the major and minor axes, the role of foci, and how eccentricity values affect the shape of an ellipse. It highlights that eccentricity cannot be zero and discusses the implications of eccentricity values approaching zero, leading to a circular shape. The tutorial concludes with a summary of these concepts.

What does eccentricity help us understand about an ellipse?

• The size of the ellipse

• The color of the ellipse

• The weight of the ellipse

• The shape of the ellipse

Which axis is larger in an ellipse?

• Both are equal

• Major axis

• Minor axis

• Neither

Why can't the value of C/A be equal to 1?

• Because it would make the ellipse a circle

• Because it would make the ellipse a triangle

• Because it would make the ellipse disappear

• Because it would make the ellipse a square

What happens to the shape of an ellipse as eccentricity approaches zero?

• It becomes a square

• It becomes a triangle

• It becomes a circle

• It becomes a rectangle

Can eccentricity ever be exactly zero?

• Only if C equals A

• Only sometimes

• No, never

• Yes, always