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# 2.9.5 Four Colored Triangles CodeHS Answers

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The most common answer is:

``````pensize(5)
color(“red”)
right(180)
forward(100)
right(180)
forward(200)
right(180)
forward(200)
Adding the extra forward line makes it spazz out for some reason
def triangle():
forward(10)
for i in range (4):
right(120)
color(“green”)
forward(50)
right(120)
color(“blue”)
forward(50)
right(120)
triangle()``````

This code seems to be attempting to draw four colored triangles, but it’s not structured correctly for that purpose. The `triangle` function as defined doesn’t actually draw a triangle; instead, it moves forward a bit and then executes a series of rotations and color changes without clear triangle formations. Also, the initial part of the code before the function definition seems to be an attempt at drawing something else, not a triangle.

You’d need a loop that draws a triangle and then changes the position and/or color for the next triangle to draw four triangles in four different colors.

Let’s correct the code to draw four triangles, each in a different color, and positioned in a way that they don’t overlap:

``````import turtle

# Set the pen size
turtle.pensize(5)

# Function to draw a triangle
def draw_triangle(color, start_pos):
turtle.penup()  # Lift the pen to move to the start position
turtle.goto(start_pos)  # Move to the specified start position
turtle.pendown()  # Put the pen down to start drawing
turtle.color(color)  # Set the color for the triangle
for _ in range(3):
turtle.forward(100)  # Draw the side of the triangle
turtle.right(120)  # Turn right 120 degrees to form the angle of the triangle

# Starting positions for each triangle
positions = [(-50, 0), (50, 0), (0, 86), (100, 86)]
colors = ["red", "green", "blue", "yellow"]

# Draw four triangles
for pos, color in zip(positions, colors):
draw_triangle(color, pos)

turtle.done()  # Keep the window open until manually closed
``````

This code defines a `draw_triangle` function that takes a color and a start position. It then uses this function to draw four triangles, each with a different color and starting position. The `positions` list contains the starting positions for each triangle to ensure they are spaced out and do not overlap.

The `colors` list specifies the color of each triangle. The `zip` function is used to iterate over both the positions and colors simultaneously, passing them to the `draw_triangle` function for each of the four triangles.

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