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

Steepness and Road Signs
functionartculture
Untitled
Fourier Lissajous (Mechanical)
Model sferyczny - dwunastościan-dwudziestościan

Discover Resources

Absolute Extrema Finder
異分母分數加法練習
Number Theory
Euler Line and the 4th Center of the Triangle
HKDSE 2012 Practice Paper 2 Question 39

Discover Topics

Cosine
Rectangle
Tree Diagrams
Polynomial Functions
Area