Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
A 3D generalization of Viviani's theorem
Author:
Zoltán Kovács
For a point in an isosceles tetrahedron the sum of distances to the faces is constant. See also the
"Cut The Knot" page
.
GeoGebra
New Resources
Poorly Drawn Parallelograms 3
Quiz: Finding Average Rate of Change
Variation Theory Parallelogram Proofs
Blancmange curve (fractal)
探究由平行線和截線所成的角
Discover Resources
Quadratic Graph Explorer
S.3 Ch.5 Area and Volume (III)-2
Proof 93
ازاحة الدوال
Crazy
Discover Topics
Quadratic Functions
Differential Equation
Frequency Distribution
Sequences and Series
Diagrams