GoGeometry Action 28! (Quick Angle Problem)

Author:Tim Brzezinski

Creation of this applet was inspired by a tweet from Antonio Gutierrez. What is the measure of the pink angle? How can you formally prove this to be true?

New Resources

Untitled
apec
Publish app "Public" test
Trefoil Knot
Slope and Road Signs

Discover Resources

Surface, partial derivative and tangent plane
h18n10
triangle
Copia de Custom Axis as add on / individuelle Zusatz-Achsen
Concavelens1

Discover Topics

Logarithmic Functions
Triangles
Tangent Line or Tangent
Sphere
Line Segment