# Triangle and Circle Inside Square _Posted on Apr 7, 2019_ +-- {.image} [[TriangleandCircleInsideSquare.png:pic]] > The equilateral triangle in the corner of this square is tangent to the circle where they touch. What's the diameter. =-- * Thread [on twitter](https://twitter.com/Cshearer41/status/1114798315504308224) * [[triangle and circle inside square techniques]] * [[triangle and circle inside square solution]]