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两平面夹角1
Author:
刘莹
GeoGebra
New Resources
四邊形的特性
畫出對稱圖形
【案例】2018年全国1卷理科12题
找出對稱軸
兩組對邊相等的四邊形
Discover Resources
Vertex Form of Quadratic Functions(2) 二次函數的圖像：頂點式(2)
畢氏定理動態證明(歐基里得，平形四邊形等面積，應用polyline)
Normal Vector
塗鴉
becca貝卡卡
Discover Topics
Distributions
Dilation
Logarithmic Functions
Parabola
General Quadrilateral