This brooch has a square design in the center with a half circle on each side of the square.

Brooch

This brooch has a square design in the center with a half circle on each side of the square.

Illustration of a circle divided in half.

Circle, 1/2 Fraction

Illustration of a circle divided in half.

An illustration of a right triangle inscribed in a semicircle.

Right Triangle Inscribed In A Semicircle

An illustration of a right triangle inscribed in a semicircle.