Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Triangle Angle Sum Proof
Author:
Shaun
Topic:
Angles
,
Triangles
How can we use our understanding of angles 1 through 5 to prove that every triangle must have 180 degrees?
GeoGebra
How can we use what we know about angles 1 through 5 to prove that a triangle must have 180 degrees?
New Resources
alg2_05_05_04_applet_exp_fxn_flvs
Finding Average Rate of Change of a Function
Droste effect draft
alg2_05_05_01_applet_exp_flvs
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Discover Resources
Trig
Similar Shapes
The Derivative - Tangent/Secant Lines
math
Altitudes in a Triangle (Orthocenter)
Discover Topics
Perimeter
Exponent
Inequalities
Limits
Derivative