How to draw a four-sided pyramid using Geometry Sketchpad

Operation method: direct drawing method

Open the drawing tablet, select [Polygon Tool] to draw a quadrilateral ABCD on the drawing board, and then use the [Point Tool] to draw a point E randomly outside the quadrilateral, and then use [Line Segment Tool] Just connect the four edges of the quadrangular pyramid to get the quadrangular pyramid as shown in the picture.

Operation method 2: Use custom tools

Open the geometry sketchpad, click the custom tool button in the left toolbox, and select [Solid Geometry] from the pop-up tool menu ——[Four-sided pyramid], as shown in the figure.

Click once in the blank space of the drawing board to determine the center position of the base of the quadrangular pyramid, then drag the mouse to determine the size of the quadrangular pyramid and click the mouse to draw the quadrangular pyramid. .

Adjust the Pyramid

Select the [Move Arrow Tool] on the sidebar, press and hold the red point in the center of the bottom and drag to change the size of the four-sided pyramid and rotate it around Bottom vertex rotation.

Press and hold the red vertex on the bottom surface and drag it or rotate it to change the size of the pyramid and rotate it around the center of the bottom surface.

Press and hold the vertex of the quadrangular pyramid and drag it up and down to change the height of the quadrangular pyramid. The effect is as shown in the figure.

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