A detailed method of a geometric sketch over a point to make a perpendicular line of a known straight line

A detailed method of a geometric sketch over a point to make a perpendicular line of a known straight line

Situation 1: The point is on a straight line, which is a vertical line that crosses the point as a straight line, you can follow the following steps:

In step 1, open the geometry artboard, select the [Straight Line Tool] to draw an arbitrary straight line l on the artboard, and use the [Point Tool] to remove a point A on the straight line, select the point A and the straight line, click the [Construct] menu in the upper menu bar, and select the [Perpendicular Line] command from the menu drop-down.

A detailed method of a geometric sketch over a point to make a perpendicular line of a known straight line

Step 2 After performing the above operations, you can make a vertical line of the straight line l of point A, select [Mark Tool] to draw a vertical symbol, set the symbol transparency to 0, and the final effect is as shown in the figure.

A detailed method of a geometric sketch over a point to make a perpendicular line of a known straight line

Situation 2: If a point outside the straight line is used as a perpendicular line of a known straight line, in addition to the above methods, you can also operate according to the following methods, the specific operation is as follows:

Open the geometric artboard, select [Line Tool] to draw an arbitrary line m on the artboard, and use the [Point Tool] to draw a point A outside the line, hold down the [Custom Tool] button on the left toolbar, and select [Line Tool] – Vertical Line Segment Tool in the pop-up tool menu.

A detailed method of a geometric sketch over a point to make a perpendicular line of a known straight line

After selecting the above tools, click on point A, click on the straight line m, determine the vertical foot, so that the vertical line segment of point A and straight line m is drawn,

A detailed method of a geometric sketch over a point to make a perpendicular line of a known straight line

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