Tangent Normal Axis Triangle
Top > Conics > Parabolas

Download Geometry Expressions File

We see that the focus is the midpoint of the segment joining the intersections of the tangent and the normal with the axis:

Hence the circumcenter of the tangent/normal/axis triangle is the focus.

Expressions

Name Input
Length AD Eq Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image
Length BE Eq Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image
Point D Eq Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image
Point B Eq Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image
Point E Eq Derive Input Maple Input MathML Input Mathematica Input Maxima Input Mupad Input TI-Nspire Input text Input Image

Geometry Expressions

Content copyright 2010 Saltire Software. All Geometric Content created by Geometry Expressions.
Web Analytics