the following links direct to:

### triangles

- equilateral triangle, given its side
- equilateral triangle, given its centre and one vertex
- equilateral triangle, given the circumscribed circle and the direction of an edge
- equilateral triangle, given the apothem
- isosceles triangle, given the size of the larger edge
- right triangle, given the hypotenuse and one cathetus
- a triangle, given its midpoints
- a triangle, given the orthocentre and the circumcentre

### quadrangles

- square, given the median lenght
- square, given the diagonal
- square, given the edge
- square, given the apothem
- rectangle, given the diagonal
- rhombus, given one of the diagonals
- rhombus, given the edge

### regular pentagon

- regular pentagon inscribed in a circle #01
- regular pentagon inscribed in a circle #02
- regular pentagon inscribed in a circle #03
- regular pentagon inscribed in a circle #04
- regular pentagon, given its edge lenght

### regular hexagon

- regular hexagon, given the large diagonal
- regular hexagon, given the edge lenght
- regular hexagon, given the short diagonal
- regular hexagon, given the apothem

### regular octagon

- egular octagon, given the large diagonal
- regular octagon, given the edge lenght #01
- egular octagon, given the edge lenght #02

### regular decagon

- regular decagon inscribed in a circle
- regular decagram inscribed in a circle