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

Circle Passing Through 3 Points
Volume by Disk/Washer around y
Locus Related to Descartes' Folium
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם
Triangle with 3 Right Angles

Discover Resources

Tension "Calculator"
Basic Construction 6 Bisect an Angle
Trikotniki enačba 1/3
Booster Fractal Time-Waster

Discover Topics

Polynomial Functions
Geometric Mean
Equilateral Triangles
Scatter Plot
Logarithm