How to draw a positive pentagon with a geometric artboard?

In the process of learning geometry, we inevitably encounter positive Pentagon. The positive Pentagon is a five-length line segment that is formed by a closed shape with an equal internal angle. Now a lot of teachers in the process of using the multimedia tutorial, will use the geometry of the artboard to draw a positive Pentagon auxiliary tutorial. But the specific drawing of some of the geometry of the new user is not very familiar with, the following to share with you how to use the geometry of the artboard to draw positive Pentagon it?

The following steps are described:

Step one new parameter n=5. Open the Geometry artboard, click on the "Data" menu above, in its drop-down menu select "New Parameter" command, in the dialog box to modify the parameter name is n, the value is changed to 5 (not decimal).

Create a new parameter n example in a geometry artboard

Step two draws the center and starting point of the Pentagon. Select the left-hand toolbox "point tool" to draw a point A at the blank of the artboard as the center of the Pentagon, and another point B as the starting point for the Pentagon edge.

To draw the center A and start B examples of Pentagon

Step three calculates the numerical 360°÷n. Click on the "Data" menu above, select "Calculate" command in its drop-down menu, calculate the value in the popup dialog, get 360°÷n.

Calculate Numerical 360°÷n Example

Step four to point B performs a rotation transformation. Select "Move Arrow Tool", double click on Point A, mark the center of rotation, select point B, perform "transform"--"rotate" command, angle click on the calculated value of the previous step, so that a new point B ', Construction line BB ', as shown in.

Point B Perform a rotation transformation example

Step five select only B and Parameter n, hold down the SHIFT key, perform the "transform"--"depth Iteration" command, click Point B ' in the initial image highlight area, then click on the "Iteration" button to complete the Pentagon drawing.

Performing an iterative construction positive Pentagon example

The above gives you a detailed introduction of how to use the geometric drawing board to draw the positive Pentagon, mainly to let you master the geometry of the iterative function of the flexible use of the artboard. Iterations can also be used to construct many geometries and fine patterns, as described in the previous tutorials. If you have questions about the previous study of using reflection commands to construct positive Pentagon, refer to the relevant geometry artboard tutorials .

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How to draw a positive pentagon with a geometric artboard?