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How to construct the angle 75°?
中等数学增刊23-12卷-几何题_哔哩哔哩_bilibili
Solar Path Methods
Construction of an Angle Bisector – GeoGebra
javascript - Decimal rounding issue while calculating angle of triangle - Stack Overflow
G.2.4.2 What Information Do I Need? – GeoGebra
Now check your predictions. In GeoGebra, rotate quadrilateral ABCD about the origin through angles of 90°,
GeoGebra: How to Display Exact Values in Simple Radical Form For those of you who like to display exact distances in simple radical form, GeoGebra's SURDTEXT command does just this. Note
Constructing the angle 75°?
Construction of a triangle, given a side and two angles - Lesson – GeoGebra
Construct a 75 Degree Angle – GeoGebra
Drawing Tools
中等数学增刊23-12卷-几何题_哔哩哔哩_bilibili
中等数学增刊23-12卷-几何题_哔哩哔哩_bilibili
Matematika 8 - 6.6 Rotacija