The Shoemaker's Knife

Topic:Area

The area enclosed by the semi-circles centred O, X and Y and on the same diameter is called the Shoemaker's Knife. The radii of the two smaller semi-circles are variable. This is illustrated in the diagram below.

New Resources

bewijs stelling van Pythagoras
The Gardener's Circle
Trammel of Archimedes Art
The Gardener's Ellipse
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

Discover Resources

Cubic Function Intercept Form
william morris fabric
Area of a triangle
Pg 61-62 (1-6)

Discover Topics

Optimization Problems
Logic
Random Experiments
Polynomial Functions
Special Points