New posts in Circles

How to draw Venn diagrams (especially: complements) in LaTeX

Good way to make \textcircled numbers?

Since we can fill a circle with infinitely-many copies of its radius, isn't $\frac{\text{Circle area}} {\text{Circle radius}} =\infty?$

Find $∠ADC$ given $A,D$ on circle with diameter $BC$ and $∠BAO = 50°$

Intersection of perpendicular chords: is this true for a sphere?

Area of triangle with incircle tangent to semicircle whose diameter is on one triangle side

First year french college. Is there a finite set of points of the plane A. Finite set of point A such as...

Defining manifold coordinates without an embedding

Sangaku: to prove one of the intangents is parallel to $BC$

Calculate area of polygon inside unit square