Rhombus

Implement a rhombus function to recreate the following graphic.

A rhombus is composed of two isosceles triangles placed one above the other.

The Upright Isosceles Triangle

Let's start by implementing the upright_isosceles_triangle function, that generates an isosceles triangle rotated upright (with a horizontal base, and the tip at the top center). An approach could be to import your isosceles_triangle function from your toolbox (or to call the triangle function with the same value for the two sides), and then to rotate the resulting triangle accordingly. The following sketches might help you with the reasoning on the rotation angle.

Note that the rotate function requires a negative angle to rotate clock-wise.

• result of triangle(160, 160, 40, black)

  

• with horizontal and vertical axis to help find the angle of rotation

  

• wanted result

  

The Rhombus

Now you only have to combine two isosceles triangles, one above the other, to generate a rhombus. Implement the rhombus function using the pytamaro above and rotate functions, together with the upright_isosceles_triangle function that you just implemented.

Save in Toolbox

Now save your rhombus function in your toolbox. It may come in handy as a component for more complex graphics in the future.