The 9-point Conic

Author:Steve Phelps

In a complete quadrilateral, the midpoints of the six sides (AB, BC, CD, DA, BD, and CA) and the three intersections of the opposite sides (E, F, and G) - nine points in total - lie on a conic.

New Resources

The Gardener's Circle
רישום חופשי
Classifying Triangles
Regular Polygons and Equivalent Triangles
The Gardener's Ellipse

Discover Resources

Altitudes of a Triangle
Parker_FridayPd1_Review
Sisiempat Kitaran
regpyramid1
Circle Area (By Peeling!)

Discover Topics

Dilation
Bar Chart or Bar Graph
Centroid or Barycenter
Fractions
Pythagoras or Pythagorean Theorem