Question

Write a program that will draw four tri-colored triangles next to one another in the center of the canvas.
Make sure your triangles:

Have sides of different colors (red, green and blue!)
Have sides that are 50 pixels long
Are centered around the y-axis
Have sides drawn with a thickness of 5 pixels
Hints:

Tracy is drawing 4 triangles, which means that 2 should be left of center and 2 should be right of center. Each triangle has a width of 50. This should help you figure out where to place Tracy to center your triangles!
Try to figure out how you can use a for loop to shorten your code!

Answer 1

You can create a program to draw four tri-colored triangles using the `turtle` graphics library in Python. Below is an example code that accomplishes this task. The code places the triangles centered around the y-axis and uses a loop to manage the drawing of the triangles efficiently.

```python
import turtle

# Function to draw a triangle
def draw_triangle(x, y, color1, color2, color3):
turtle.penup()
turtle.goto(x, y)
turtle.pendown()
turtle.pensize(5)

# Set colors for the sides of the triangle
turtle.color(color1) # Side 1
turtle.setheading(60)
turtle.forward(50)

turtle.color(color2) # Side 2
turtle.setheading(-120)
turtle.forward(50)

turtle.color(color3) # Side 3
turtle.setheading(180)
turtle.forward(50)

turtle.setheading(60) # Return to the starting point
turtle.penup()
turtle.goto(x, y)

# Main function to draw the triangles
def main():
turtle.speed(5)

# Loop to draw four triangles
colors = [("red", "green", "blue"), ("blue", "red", "green"),
("green", "blue", "red"), ("red", "green", "blue")]
x_positions = [-75, -25, 25, 75] # X offsets for centering

# Draw triangles at specified positions with associated colors
for i in range(4):
draw_triangle(x_positions[i], 0, colors[i][0], colors[i][1], colors[i][2])

turtle.hideturtle()
turtle.done()

# Run the program
main()
```

### Explanation:

1. **Function to Draw Triangle**:
- `draw_triangle(x, y, color1, color2, color3)` function takes coordinates for the starting point (x, y) and the colors of the sides as parameters.
- The function uses turtle graphics to draw the triangle with the specified colors for each side.

2. **Main Function**:
- The `main()` function sets the drawing speed and defines two lists: one for the colors and another for the x-positions of the triangles.
- A loop iterates through the indices of the triangles, calling `draw_triangle` with the appropriate coordinates and colors.

3. **Execution**:
- The `main()` function is called to execute the drawing commands.

### Setting Up:
To run this program, ensure you have Python installed, and you can save the code into a `.py` file and execute it. The turtle graphics window will open, and you will see the four tri-colored triangles drawn in the specified arrangement.