Pencil Angle

Author:John Golden

Slight generalization of a Brilliant.org problem. What will the angle between the pencils be if they are put together tightly tip to tip? (The original problem asked when both pencils were 30 degrees.)

New Resources

Function Art Competition (SEAMEO)
Tracing Quadrics and Surfaces
רישום חופשי
Colors for GeoGebra
Maclaurin and Taylor Polynomial

Discover Resources

Activity 8-1
Attempt at putting in formula
Find an equation for the x-coordinate of the point P as a function of the angle measure, t.
Perpendicular Bisectors of a Triangle

Discover Topics

General Quadrilateral
Reflection
Centroid or Barycenter
Optimization Problems
Definite Integral