How a geometric artboard constructs an isosceles triangle with precise angular degrees

There are many ways to do isosceles, and there will be many ways to do it according to the position of the active point.

Take the question you gave as an example, but ° does not form a triangle ° is about the same.

Let's look at the process.

The first method is to directly make an isosceles triangle that meets the requirements of the question, and the three inner angles are fixed and cannot be changed; To do isosceles at other angles, you only need to use the inner angle and the formula to calculate the top angle, and enter the corresponding top angle in the rotation menu when rotating.

The second method is to use parameters to control the bottom angle, which is convenient to modify, as long as it is an isosceles triangle that satisfies the inner angle and theorem, you only need to change the number of base angles to make it, and the same method can be made into an isosceles triangle that controls the top angle with parameters, and the operation will not be repeated here.

In this case, you can select the endpoint of a line segment and the line segment, and select the "Transform-Rotate-50°" setting

1. If the angle is another angle, you need to measure this angle, mark the metric value, and then mark the end point of a ray as the center, and rotate the ray according to the marked angle.

2. If the angle is a parameter, mark this parameter, and then mark the end point of a ray as the center, and rotate the ray according to the marked angle.

3. If the angle is required by the language description, mark the end point of a ray as the center, and rotate the ray according to the required angle. Hello, happy to answer your questions.

If you don't understand anything about this question, you can ask it, and if you are satisfied, remember.

If you have other questions, click to ask me for help after this question, it is not easy to answer the question, please understand, thank you.

Good luck with your studies.

As a professional drawing tool, there is more than one way to draw an isosceles triangle, which is summarized as follows:

Method. 1. Use the Geometric Sketchpad Circle tool to construct an isosceles triangle, and the specific steps are as follows:

Construct a circle. Use the Circle Tool to construct a circle.

Construct an isosceles triangle. Select the Segment Ruler Tool to construct any string on the circle, connecting the end points of the segments with the center of the circle to form a triangle.

Hide the circle. Click on the circumference and press "Ctrl+H" to hide the circle and the isosceles triangle is drawn.

Method. Second, the use of symmetrical transformation to construct an isosceles triangle, the specific operation steps are as follows:

1.Create a new geometry artboard file. Use the Segment Tool to draw a line segment ab; Hold down the shift key and cross the point A to construct a vertical line segment AD;

2.Double-click the segment AD with the Selection Tool to mark it as a mirror. Select point B and line segment AB and select the menu "Transform" - Reflection";

3.Select the point D and the line segment AD, and press Ctrl+H to hide these two objects. Use the Segment Tool to draw the third edge of the triangle and change the label of the third vertex to c.

Both of the above methods can draw an isosceles triangle, and the tutorial index hopes to help you.

Quickly construct various geometric shapes with a geometric artboard, you can save the trouble of drawing on the blackboard, and the steps to build an isosceles right triangle are as follows:

Step 1, start the geometry artboard, click the "ruler" tool on the toolbox, hold down the "shift" key, draw a horizontal line segment in the operation area, select the "text" tool on the toolbox, when the cursor changes from a "little white hand" to a "small **", click on the two ends of the line segment respectively to display a and b, and get the line segment ab.

Step 2, click the Select Arrow tool on the toolbox, select one of the endpoints and segments of the segment, click the "Structure" and "Perpendicular" menu commands to draw the perpendicular line of the segment AB.

Step 3, click the "Point" tool on the toolbox, move the cursor to the perpendicular line, when the perpendicular line shows high brightness, click the left mouse button to get a point, select the "Select Arrow" tool on the toolbox, select the point you just made and points A and B, click "Construct" and "Angle Bisector" menu command in turn to make an angle bisector.

Step 4, click the "Select Arrow" tool on the toolbox, select point B and the angular bisector you just made, and click the "Construct" and "Perpendicular" menu commands to draw the perpendicular line of the angular bisector.

Step 5, click the "Point" tool on the toolbox, move the cursor to the perpendicular line J and L, and click the left mouse button to get a point, which is the intersection point of the perpendicular line J and L. Click the Text tool on the toolbox, named C.

Step 6, click the "Select Arrow" tool on the toolbox, click the blank space of the operation area to release all the selected objects, then select the points and corner bisectors on the perpendicular lines J, L, and line segment AC, and click the "Show" "Hidden Objects" menu command to hide the selected objects. Then select the points C and A, press the shortcut key "Ctrl+L" to draw out the line segment CA, and click the blank space in the operation area to release the selected object. In the same way, make the line segment CB to get an isosceles right triangle.

Your question is interesting, please say the script requirements and I'll make one for you.