Python Programming: An Introduction to Computer Science, 3rd Ed.
Python Programming: An Introduction to Computer Science, 3rd Ed.
3rd Edition
ISBN: 9781590282755
Author: John Zelle
Publisher: Franklin, Beedle & Associates
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Chapter 4, Problem 10PE
Program Plan Intro

Program to draw a triangle

Program plan:

  • Import the required graphics package.
  • Define the main method.
    • Using the object GraphWin(), to display the graphics window.
    • Using the method setCoords(), set the size of the graphics window.
    • Prompt the user for 3 mouse clicks.
    • Store coordinates in variables x1, x2, x3, y1, y2, and y3.
    • Using the method polygon(), draw a triangle in the graphics window.
    • Calculate the area and perimeter of the triangle using the given formula.
    • Print the area and perimeter of the rectangle.
  • Call the function “main()”.

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