Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Area of a Trapezoid by Similarity
Author:
John Golden
Topic:
Area
,
Trapezoid
Inspired by Ed Southall's trapezoid musings.
http://solvemymaths.com/2015/03/07/proof-area-of-a-trapezium-trapezoid-us/
In the sketch, it is set up so BC<=AD. Is that an okay assumption to make?
GeoGebra
New Resources
Construct a Conic
探究由平行線和截線所成的角
Taylor Polynomial
Shade a spheric triangle with "surface".
Chaotic behaviour
Discover Resources
Hypergeometrische Verteilung
Locus of a moving point and two fixed parallel lines
foro
Pythagorean Theorem Discovery
selfcross
Discover Topics
Power Functions
Parabola
Division
Quadratic Functions
Equations