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

Constructing the Perpendicular Line Through a Point on the Line
seo tool
Proving Triangles Congruent (2): Multi-Step Transformations
Calendar Puzzle
גיליון אלקטרוני להעלאת נתוני בעיה ויצירת גרף בהתאם

Discover Resources

Slovak GeoGebra Institute
Golden Rectangles
Untitled
Factoring Practice
Islamic Art Julia Mirsky

Discover Topics

Stochastic Process or Random Process
Combinatorics
Differential Calculus
Indefinite Integral
Circle