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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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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