Google Classroom
GeoGebra
GeoGebra Classroom
Sign in
Search
Google Classroom
GeoGebra
GeoGebra Classroom
GeoGebra
Home
Resources
Profile
Classroom
App Downloads
Exercise 4.5 - Regular pentagon, given a side
Author:
Gianluca Occhetta
GeoGebra
By construction, if AB = 1 then BF =
, and BG =
, hence the triangle ABI has angles of 72
and 36
New Resources
Construct a Conic
alg2_05_05_01_applet_exp_2_flvs
alg2_05_05_04_applet_exp_fxn_flvs
Explore the invariant lines of matrix {{-2,5},{6,-9}}
Quiz: Finding Average Rate of Change
Discover Resources
Norwood M Geogebra project
Denn's Edited Sketch of Parallel Lines
BOOMERANG !
Reflections
InscribedCircles
Discover Topics
Scatter Plot
Real Numbers
Polygons
Median Value
Differential Calculus