GeoGebra
Create Lesson
GeoGebra
Home
News Feed
Resources
Profile
People
Classroom
App Downloads
Varignon's Theorem
Author:
Colin Beveridge
Varignon's Theorem
states that the midpoints of the sides of any quadrilateral form a parallelogram. Can you prove it?
New Resources
Grab a prize! game - fractions on a number line
Incircle, Excircles, and Nagel Points
Straight line y=ax+b
Using Inverse Trig Functions to Express Angle Measures
Gabriel's Horn
Discover Resources
V-2 rocket: Edwards & Penney problem 4
Game on Equations of Straight Lines y = mx +c
Quadratic 3 in Standard Form
GoGeometry Action 154!
สามเหลี่ยม
Discover Topics
Rectangle
Multiplication
Pythagoras or Pythagorean Theorem
Mathematics
Hypergeometric Distribution