The operation process of using rotation to make an equilateral triangle in Geometric Sketchpad

Want to make an equilateral triangle, but don’t know how to do it? The geometric sketchpad has powerful geometric drawing functions, and the rotation function is one of the basic functions. In this article, PHP editor Youzi will introduce to you how to use the geometric sketchpad to use the rotation function to make an equilateral triangle. The detailed operation steps are as follows, and then read on!

Construct line segment AB. Open the Geometry Sketchpad, select the line segment tool on the left sidebar, click once in the work area, and draw an endpoint of the line segment. Then hold down the Shift key, drag the mouse, and click the mouse at the appropriate location to draw a horizontal line. part. Then use the text tool to click on the two endpoints in sequence and mark them as points A and B.

Marked point A is the center of rotation. Select the move tool and double-click point A to mark point A as the center of rotation; or select the Mark Center command under the Transform menu.

Perform rotation 60? operate. Use the Move tool to click on the line part of line segment AB and point B. At this time, line segment AB and point B are selected. Then execute the Rotate command under the Transform menu. The Rotation dialog box will pop up. Change the degree to 60 degrees and click Rotate.

Find the vertices of the triangle. After performing the above operations, you can find the third point of the triangle. Use the text tool to click once and name the point as point C.

Construct line segment BC to obtain an equilateral triangle. Use the line segment tool on the left to connect points B and C in sequence, thus constructing line segment BC, which also forms the equilateral triangle ABC.

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