How to draw by rotating 90 degrees counterclockwise around the point o? The editor uses PPT to demonstrate how to rotate the figure around a point to draw a picture. For more downloads, please click ppt home.
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First of all, insert - shape - select the downward arc arrow, draw a counterclockwise guide arrow, if you draw it by hand, just come directly.
Then use the right-angled triangle to press counterclockwise, and one side of the right-angled side overlaps with OA.
Then draw the line segment OA' along the other right-angled side of the right-angled triangular plate, so that OA'=OA.
According to the method of steps 2 and 3, place the right-angled triangular plate counterclockwise to overlap one side of the right-angle with OB—and draw OB'=OB on the other side of the right-angle.
Next place the right-angled side of the triangle between A' and B'.
Finally, draw the line segment between A' and B' along the right angle.
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