When using WPS demonstration to make mathematics courseware, in order to demonstrate the difference between right-angled triangles, obtuse-angled triangles and acute-angled triangles, it is necessary to draw right-angled triangles, obtuse-angled triangles and acute-angled triangles on the slide. There are only two shapes of isosceles triangle and right triangle in the shape library, how to draw obtuse triangle and acute triangle?
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1. Open WPS and create a blank demo.
2. Click the right triangle in the Insert shape.
3. Draw a right triangle on the slide. A right triangle is readily available and you get it.
4. Copy 2 copies of the drawn right triangle as the basic graphics for subsequent drawing of obtuse triangle and right triangle.
5. Select a right triangle, right-click 【Edit Vertex】.
6. Then the three vertices of the right-angled triangle turn black, click on the right-angled vertex, and drag toward the hypotenuse.
7. Release the mouse at the appropriate position, and the obtuse triangle will be obtained.
8. Similarly, select the third right triangle, right-click [Edit Vertex].
9. Click on a vertex above and drag to the right.
10. Release the mouse at the appropriate position.
11. In this way, three kinds of triangles are drawn.
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