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Sum of the Interior Angles of a Pentagon
Author:
Paige Williamson
,
Terry Lee Lindenmuth
GeoGebra
Adjust the Pentagon to test your conjectures.
New Resources
Shells
Making New Year's resolutions for 2026
Untitled
Reflection across a line
Using Experimental Probability to Estimate π - Monte Carlo Method
Discover Resources
Fifth circle theorem: 'Tangent lengths'
Quadrilateral Angle Sum
image
day 72
Tidal Accelerations (Not to scale)
Discover Topics
LCM and GCD
Difference and Slope
Indefinite Integral
Special Points
Polynomial Functions