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Regular Pentagon Wonder: GoGeometry Action 192!
Author:
Tim Brzezinski
Topic:
Geometry
,
Polygons
Creation of this resource was inspired by
this problem
from Antonio Gutierrez.
How can we formally prove what is dynamically illustrated here?
The pentagon shown below is regular. The LARGE POINTS are MOVEABLE. Be sure to slide the slider SLOWLY!
GeoGebra
Quick (silent) demo
New Resources
Rotating Custom Polygons Around an Axis
Deciding How New Information Affects Probability
Midpoint Theorem (V2): Integer Solutions
Odd Function Explorer
Angle Addition Postulate (V2) - Integer Solutions
Discover Resources
Drag from A, B, and C to change the triangle
arc length in 2d
Triangular piramid (unfold)
Red and Blue Areas of Polygons
y' = x + y
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Parabola
Median Value
Continuity
General Quadrilateral
Frequency Distribution