# Draw Spiraling Triangle using Turtle in Python

• Last Updated : 20 Aug, 2020

Prerequisite: Python Turtle Basic

Turtle is an inbuilt module of python. It enables us to draw any drawing by a turtle, methods defined in the turtle module, and by using some logical loops. To draw something on the screen(cardboard) just move the turtle(pen). To move turtle(pen) there are some functions i.e forward(), backward(), etc.

Approach to draw a Spiraling Triangle of size n:

• Import turtle and create a turtle instance.
• Using for loop(i = 0 to i< n * 3) and repeat below step
• turtle.forward(i * 10).
• turtle.right(120).
• Close the turtle instance.

Below is the implementation:

## Python3

 `# importing turtle module ``import` `turtle `` ` `# size``n ``=` `10`` ` `# creating instance of turtle ``pen ``=` `turtle.Turtle() `` ` `# loop to draw a side ``for` `i ``in` `range``(n ``*` `3``): ``   ` `    ``# drawing side of ``    ``# length i*10 ``    ``pen.forward(i ``*` `10``) ``     ` `    ``# changing direction of pen ``    ``# by 120 degree in clockwise ``    ``pen.right(``120``)``     ` `# closing the instance ``turtle.done() `

Output:

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